Current Electricity

Current Electricity
The color of the terminal of the galvanometer that shows the positive polarity is
red
blue
black
green
Author: rikazzz Comment
Current Electricity
The chemical energy of battery changes to
mechanical energy
kinetic energy
potential energy
electric potential energy
Author: rikazzz Comment
Current Electricity
The amount of heat and light energy converted per second by a bulb of 60 W is
50 J
60 J
120 J
80 J
Author: rikazzz Comment
Current Electricity
The amount of energy supplied by the current in unit time is known as
electric power
potential difference
flow of light
flow of heat
Author: rikazzz Comment
Current Electricity
The device that disconnects the supply automatically if current exceeds the normal value is known as
circuit breaker
fuse
cable
capacitor
Author: rikazzz Comment
Current Electricity
Current can be fatal of
50 mA
30 mA
5 mA
10 mA
Author: rikazzz Comment
Current Electricity
The chemical energy of the battery changes to
mechanical energy
electrical potential energy
atomic energy
heat energy
Author: rikazzz Comment
Current Electricity
In a light bulb of 60 W, the current in a bulb fluctuates in each second
50 times
100 times
25 times
70 times
Author: rikazzz Comment
Current Electricity
The current flowing from positive to the negative terminal of a battery due to the flow of positive charges is known as
electromotive current
resolving current
potential current
conventional current
Author: rikazzz Comment
Current Electricity
If 2 resistors of 5kΩ and 7kΩ are connected in series across a 15V battery, then equivalent resistance of the series combination should be
10kΩ
12kΩ
15kΩ
20kΩ
Author: rikazzz Comment

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