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25.08.2020

Ncert Solutions Class 10th Physics Electricity Version,Free Model Ship Building Plans Code,Heesen Yacht Builders Oss 91,Small Homemade Wooden Boats 45 - PDF 2021

An electric circuit consists of electric devices, switching devices, source of electricity. The unit of electric current is ampere A.

One electron possesses a charge of 1. Therefore, electrons constitute one coulomb of charge. A source of electricity such as cell, battery, power supply.

If 1 J of work is required to move a charge of amount 1 C from one point to another, then it is said phjsics the potential difference between the two points is 1 V. The energy given to each coulomb of charge is equal to the amount of work required to move it.

The amount of work is given by the expression. Will current flow more easily through versikn thick wire or a thin wire of the same material, when connected to the same source? Resistance of a wire. Thicker the wire, lower is the resistance of the wire and vice-versa.

Therefore, current can flow more easily through a thick wire than a thin wire. Let the resistance of an electrical component remains constant while the potential difference across the two ends of the component decreases to half of its former value.

What change will occur in the current through it? The resistivity of an alloy is higher than clas pure metal. Moreover, at high temperatures, the alloys do not melt readily. Hence, ohysics coils of heating appliances such as electric toasters ncert solutions class 10th physics electricity version electric irons are made of an alloy rather than a pure metal.

Resistivity of mercury is more than that of iron. This implies that iron is a better conductor than mercury. Hence, it is the best conductor. What ncert solutions class 10th physics electricity version be the readings in the ammeter and the voltmeter?

To measure the current flowing through the resistors, an ammeter should be connected in the circuit in series with the resistors. What is the resistance of an electric iron connected to the same source that takes as Ncert Solutions Of Electricity Class 10th Up much current as all three appliances, and what is the ncert solutions class 10th physics electricity version through it? Resistance of electric lamp.

Resistance of toaster. Resistance of water filter. Let be the resistance of the electric iron. Therefore, the resistance of the electric iron is and solufions current flowing through it is 7.

What are the advantages of connecting electrical soluttions in parallel with the battery instead of connecting them in series? There is no division of voltage among the appliances ncert solutions class 10th physics electricity version connected in parallel. The potential difference across each appliance is equal to the supplied voltage.

The total effective resistance of the circuit can be reduced by connecting electrical appliances in parallel. Hence, the total resistance of the circuit is.

All the ncert solutions class 10th physics electricity version are connected in series. Therefore, their equivalent resistance will be given as.

Therefore, the total resistance of the circuit is. The heating element of an electric heater is a resistor. The amount of heat produced by it is ncret to its resistance. The resistance of the element of an electric heater is very high. As current flows through the heating element, solutione becomes too hot and glows red. On the other hand, the resistance of the cord is low. It does not become red when current flows through it. Compute the heat solutioons while transferring coulomb of charge in one hour through a potential difference of verssion V.

Amount of current. Therefore, the heat generated is. Calculate the heat developed in 30 s. Therefore, the amount of heat developed in the electric iron is.

The rate of consumption of electric energy in an electric appliance is called electric power. Hence, the rate at which energy is delivered by a current is the power of the appliance. An electric motor takes 5 A from a V line. Determine the power of the motor and the energy consumed in 2 h. Ncert solutions class 10th physics electricity version piece of wire of resistance R is electriccity into five equal parts.

These parts are then connected in parallel. A soluttions of wire has a resistance R. 10tj wire is cut into five equal parts. Therefore, the ratio is An electric bulb is rated V and W. The resistance of the bulb remains constant if the nceet voltage is reduced to V.

If the bulb is operated on V, then the energy consumed by it is given by the expression for power as. Two conducting wires of the same material and of ncert solutions class 10th physics electricity version lengths and equal diameters are first connected in series and then parallel soluyions a circuit across the same potential difference. If V is the applied potential difference, then it is the voltage across the equivalent ekectricity.

In this question, t is same for both the circuit. But the electrlcity through the equivalent resistance of both the circuit is different. We could have solved the question directly using H R if in case the current was also. How is a voltmeter connected in the circuit to measure the potential difference between two points?

To measure the potential difference between two points, a voltmeter should be connected in parallel to the points. A copper wire has diameter 0. How much verion the resistance change if the diameter is doubled? Resistance R of a copper wire of length l and cross-section A is given by the expression. Resistivity of copper.

Hence, length of the wire. If the diameter of the wire is nxert, new diameter. Therefore, resistance. Therefore, the length of the wire is The plot between voltage and current is called IV characteristic. The voltage is plotted on x -axis and current is plotted on y -axis. The values of the current for different values of the voltage are shown in the given table. Clss, the resistance of the resistor is. When a 12 V battery is connected across an unknown resistor, there is a current of 2.

Find the value of the resistance of the resistor. A battery of 9 V is connected in series with resistors of 0. There is no current division occurring in a series circuit. R is the equivalent resistance of resistances.

These are connected in series. Hence, the sum of the resistances will give the value phsics R. If we connect the resistors in series, then the equivalent resistance will be the ncert solutions class 10th physics electricity version of the resistors, i. If we connect the resistors in parallel, then the equivalent resistance will be.

Hence, we should either ncert solutions class 10th physics electricity version the two resistors in series or parallel. Their equivalent resistance 1th be the sum. Hence, equivalent resistance will be. Therefore, the total resistance is. Several electric bulbs designed to be used on a V electric supply line, are rated 10 W.

How many lamps can be connected in parallel with each other across the two wires of V line if the maximum allowable current is 5 A? Rating of an electric bulb. What are the currents in the three cases? Total resistance. Total resistance, is given as. This current will flow through nceet component of the circuit because there is no division of current in series circuits. Power is given by the expression.

Conclusion:

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Use the data in Table 1( in NCERT) to answer the following: (A) Which among iron and mercury is a better conductor? (B) Which material is the best conductor? SOLUTION: (A) Iron is a better conductor than mercury as resistivity (?) for iron ( ? 10 �8 ? m) is less than that for mercury (94 ? 10 �8 ? m). NCERT Solutions for Class 10 Science Electricity can be of immense help to the students. Several eminent minds put in effort together in the preparation of this solution set. They have prepared the PDF version of the NCERT Solutions for Class 10 Science Chapter 12, . NCERT Solutions for Class 10 Science Chapter 12 - Electricity [FREE]. NCERT Books chapter-wise Solutions (Text & Videos) are accurate, easy-to-understand and .




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