If we double both the current and the voltage in a circuit while keeping its resistance constant, the power:
Remains unchanged
Halves
Doubles
Four time
the resistance of an ammeter should be:
high
very high
low
constant
A thermistor is a dependent resistors:
Heat
temperature
energy
mass
A digital multimeter is used to measure:
Current
Resistance
Potential difference
All of above
According to ohm’s law V= :
I2R
IR2
IR
I/R
How Galvanometer is connected in circuit to detect current:
In series
In parallel
Fixed
Variable
Human skin, in dry conditions, has a resistance of:
20,000 ohm
100,000 ohm
30,000 ohm
2000 ohm
