ECAT Pre Computer Science Chapter 13 online mcq test with answers for Physics chapter 13 (Current Electricity)

ECAT Physics Chapter 13 Current Electricity Online Test

Sr. #	Questions	Answers Choice
1	A thermistor is a resistor which is:	Light Sensitive Heat Sensitive Sound Sensitive All of these None of these
2	Thermistors are prepared under	High pressure and low temperature High pressure and high temperature Low pressure and low temperature Low pressure and high temprature None of these
3	The emf is measured in:	Newton Volt J/C Both A and B Both B and C
4	The quantity having the same unit as that of emf is:	Force Energy Potential Current Charge
5	Which instrument is expensive and difficult to use?	Voltmeter Potentiometer CRO Both A and C Both A and B
6	An ideal voltmeter has:	Zero resistance Small resistance Large resistance Infinite resistance Both A and B
7	Kirchhoff's first rule is also called:	Loop rule Thumb rule Point rule Right hand rule None of these
8	The third band of the colour code:	Gives the number of zeroes Is decimal multiplier Gives the resistance tolerance Gives the third digit Both (A) and (B)
9	A rheostat can e used:	As variable resistor As potential divider For varying the current All of these None of these
10	The best conductor is:	Silver Copper Aluminimum Both B and C None of them
11	As the current flows through the wire	It generates heat in the wire It produces sound in the wire Resistance of the wire decrease Voltage across the ends is the increase None of these
12	The fourth band is a:	Silver band Red band Gold band Either A or C Either A or B
13	The value of resistivity is the least for:	Copper Aluminimum Silver Tungsten Iron
14	In a metal, the valence electrons are:	Attached to individual atoms Not attached to individual atoms Free to move within the metal Both A and B Both A and C
15	In gases, the charge carriers are:	Electrons Positive ions Negative ions Both A and C Both A and B

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