(Practice) MCQ of Electricity |
1.Electricity constituted by electric charges at rest on the surface of a conductor is called |
a. Electricity b. Potential difference c. Current electricity d. Static electricity |
2.The closed path between two points at different potentials, to make the electric current flow is called |
a. Electric circuit b. Electric current c. Electric potential d. Electric cell. |
3. Direction of conventional current is taken from a. Negative to positive b. Positive to negative |
c. It could be from positive to negative or negative to positive d. None of these. |
4. With increase in temperature, resistance of a conductor |
a. Decreases b. Increases |
c . May decreases or increases depending on temperature |
d. It does not depend on temperature. |
5. In series combination, resistance increases due to increase in |
a. Temperature b Humidity c. Length d. Area of cross-section. |
6. In parallel combination, resistance decreases due to increase in |
a. Temperature b. Humidity c. Area of cross-section d. Length. |
7. The rate at which electricity is dissipated or consumed by an appliance is called electrical |
a. current b. Power c. Potential d. Energy. |
8. The unit of electrical power is |
a. watt b. ampere c. joule d. ohm. |
9. In series combination of electrical appliances, total electrical power |
a. Increases b. Decreases c. May increases or decreases d. Does not changes. |
20.The equivalent resistance in series combination is |
a. Smaller than the resistance having high value |
b .Larger than the largest resistance |
c. Smaller than the smallest resistance |
d. Larger than the smallest resistance. |
21.In a circuit containing two unequal resistors connected in parallel |
a. The current is same in both resistors |
b. The current is large in the resistance having more value |
c. The voltage is same across both the resistors |
d .The voltage drops is larger across both the resistors. |
22.. A fuse wire is always inserted in the |
a. Live wire b. In the neutral wire c. In the earth wire d. May be connected in any line. |
23. Two bulbs in a house, one glow brighter than the other. The bulb with large resistance is |
a. Dim bulb b. The brighter bulb c. Both has same resistance d. None of these. |
24.The characteristics of fuse wire is |
a. High melting point b Low melting point |
c. Low resistivity and high melting point d. High resistivity and low melting point. |
25.The unit of specific resistance is |
A .Ohm/m2 b. Ohm-m c. Ohm m3 d. Ohm/m3 |
ANSWERS : Q1.d Q2.a Q3.b Q4.b Q5.c Q6.c Q7.b Q8.a |
Q9.b Q10.a Q11c. 12.b Q13.b Q14.b Q15.b Q16.c Q17.b |
Q18.b Q19.c Q20.b Q21.c Q22.a Q23.a Q24.d Q25.b |
For more click CBSE PHYSICS: X MCQ On Electricity: |
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Nice post! It’s something I have never thought about, really, but it makes a whole lot of sense. Thanks for sharing CBSE NCERT Solutions and CBSE PHYSICS: X MCQ On Electricity.
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