Current Electri...

Three identical resistors connected in series with a battery, together dissipate 10W of power. What will be the power dissipated, if the same resistors are connected in parallel across the same battery?

A potentiometer wire of length 1 m and resistance 10Ω is connected in series with a cell of e.m.f 2V with internal resistance 1Ω and a resistance box of a resistance R if potential difference between ends of the wire is 1V the value of R is.

For a cell of e.m.f 2V, a balance is obtained for 50 cm of the potentiometer wire If the cell is shunted by a 2Ω resistor and the balance is obtained across 40 cm of the wire, then the internal resistance of the cell is.

n idential cells each of e.m.f E and internal resistance r are connected in series An external resistance R is connected in series to this combination the current through R is.

4 cell each of emf 2v and internal resistance of 1Ω are connected in parallel to a load resistor of 2Ω Then the current through the load resistor is....

A Potentiometer wire, 10m long, has a resistance of 40Ω It is connected in series with a resislance box and a 2V storage cell If the potential gradient along the wire is 0.1mv/cm, the resistance unplugged in the box is.

Potentiometer wire of length 1m is connected in series with 490Ω resistance and 2V battery If 0.2 mv/ cm is the potential gradient, then resistance of the potentiometer wire is.