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Physics 10 Chapter 14 - Current and Electricity - 4
1.
What is the SI unit of current?
a) Ampere
b) Joules
c) Coulomb
d) Ohm
2.
By which symbol, current is denoted?
a) Symbol: C
b) Symbol: I
c) Symbol: R
d) Symbol: c
3.
Ampere is the SI unit of....................?
a) Electric power
b) Electric current
c) Capacitance
d) Resistance
4.
Which of the following is the source of electric current?
a) Electroscope
b) Capacitor
c) Battery
d) Resistor
5.
A current of 3mA is flowing through a wire for 1 minute. What is the charge flowing through the wire?
a) 18 x 10
-3
C
b) 1.8 x 10
-3
C
c) 180 x 10
-3
C
d) 180 x 10
3
C
6.
During reaction in battery, positive and negative electric charges are............................?
a) Separated
b) Combined
c) Disappeared
d) Fused
7.
Which type of reaction takes place in battery?
a) Electrochemical reaction
b) Endothermic reaction
c) Exothermic reaction
d) Simple chemical reaction
8.
What does the separation of charges sets up between the terminals of the battery?
a) Pressure
b) Coulomb’s force
c) Potential difference
d) Current
9.
Due to which of the following, charges can move from one terminal to the other?
a) Potential difference
b) Capacitance
c) Kinetic energy
d) Resistance
10.
Into which energy, chemical energy of the battery changes?
a) Electrical potential energy
b) Kinetic energy
c) Elastic potential energy
d) Gravitational potential energy
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