SI unit of electric intensity is:
Watt
NC-1
NS-1
Nm
Give the number of factors which affect the ability of a capacitor to store charge.
Electroscope is used for detecting:
Current
Charge
Voltage
Resistance
What does a switch do:
Oppose the current
Open and close the circuit
Store energy
Provide voltage
Positive charge in an electric field always tend to move:
Does not move
From lower to higher potential
From higher to lower potential
All of these
The amount of current that can be painful is:
0.005A
0.001A
1A
2A