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Siemen is the SI unit of
NETNUST Entry TestPhysicsCurrent Electricity
The power dissipated in a resistor is 12.8 watts when 4 A current is passed. How much power will be dissipated if 6 A current is passed through the same resistor?
NETNUST Entry TestPhysicsCurrent Electricity
If voltage is 100 V, current Is 10A and R is 5 ohm then Internal resistance will be?
NETNUST Entry TestPhysicsCurrent Electricity
Three resistors R1, R2 and R3 are connected in series. If R1 > R2 > R3, the equivalent resistance will be
NETNUST Entry TestPhysicsCurrent Electricity
Which of the following convert the heat energy into electrical energy
NETNUST Entry TestPhysicsCurrent Electricity
Three resistors of 5 ohm, 7 ohm and 8 ohm are connected in series. Current flow will be maximum through which resistor
NETNUST Entry TestPhysicsCurrent Electricity
mho is the unit of?
NETNUST Entry TestPhysicsCurrent Electricity
In which of the following more heat energy is produced?
NETNUST Entry TestPhysicsCurrent Electricity
Value of resistivity of Iron Is
NETNUST Entry TestPhysicsCurrent Electricity
If a magnetic field around a current carrying wire is anti-clockwise then the direction of current flow is
NETNUST Entry TestPhysicsCurrent Electricity
$\rm{\frac{Volt}{ohm}}=?$
NETNUST Entry TestPhysicsCurrent Electricity
Unit of emf?
NETNUST Entry TestPhysicsCurrent Electricity
Most electric wires are made of copper because copper is:
NETNUST Entry TestPhysicsCurrent Electricity
The best conductor is:
NETNUST Entry TestPhysicsCurrent Electricity
The current in a light bulb rises to a maximum almost at the instant the bulb is turned on the current then decreases. This is because:
NETNUST Entry TestPhysicsCurrent Electricity
A sample of a conductor is said to obey Ohm's law if graph between V and I is:
NETNUST Entry TestPhysicsCurrent Electricity
Mathematical form of Ohm's law is:
NETNUST Entry TestPhysicsCurrent Electricity
The unit of resistance is:
NETNUST Entry TestPhysicsCurrent Electricity
The resistance of a conductor depends upon:
NETNUST Entry TestPhysicsCurrent Electricity
If the resistance of the conductor is increased, then current will:
NETNUST Entry TestPhysicsCurrent Electricity
The practical unit of current is:
NETNUST Entry TestPhysicsCurrent Electricity
During electrolysis process (using $CuSO_{4}$) density of $CuSO_{4}$ solution:
NETNUST Entry TestPhysicsCurrent Electricity
Copper sulphate is dissociated into $Cu^{++}$ and $SO_{4}^{--}$ ions when it is:
NETNUST Entry TestPhysicsCurrent Electricity
The current through a wire is defined as:
NETNUST Entry TestPhysicsCurrent Electricity