12th class Physics chapter 13 online mcq test with answers for ICS part 2 Physics Chapter 13 (Current Electricity)

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Sr.#	Question	Answer
1	Thermistor with high - ve temperature coefficient are very accurate for measuring low temperature especially near is.	A. 10 kelvin B. 70 kelvin C. 200 kelvin D. 35 kelvin
2	The unit of conductivity is:	A. Ohm^-3m^-1 B. Ohm m^-1 C. Both a and b D. Ohm m^-1
3	The product of resistance and conductance is	A. 1 B. Resistivity C. Conductance D. Zero
4	A certain wire has a resistance R, the resistivity of an other wire of an identical material with the first, except for twice its diameter is.	A. 1/4 R B. 4R C. 2R D. Same as R
5	Heat generated by a 40 W bulb in one hour is.	A. 140 J B. 1440 J C. 14400 J D. 144000 J
6	If a charge Q flows through any cross section of the conductor in time t, the current I is	A. I=Qt B. I= Q/t C. I= Q*t D. I= Q-t
7	If there is no fourth band, tolerance is shows as	D. 10%
8	106 electrons are moving through a wire per second the current developed is:	A. 1.6 x 10-19 A B. 1 A C. 1.6 x 10-13A D. 106 A
9	Thermosouple is an arrangement of two different metals:	A. Two convert heat energy into electrical energy B. To produce more heat C. To convert heat energy into chemical energy D. To convert electrical energy into heat energy
10	Colour codes are used to calculate the.	A. Nature of resistor B. Numerical value of resistance C. Potential difference D. Current