Using three wires of resistances 1 ohm, 2 ohm and 3 ohm, then no.of different values of resistances that possible are

Using three wires of resistances 1 ohm, 2ohm and 3 ohm then no. of different values of resistances that possible are

Two resistance wires on joining in parallel the resultant resistance is ohms (6)/(5) ohms. One of the wire breaks, the effective resistance is 2 ohms . The resistance of the broken wire is

A 10 m long wire of resistance 15 ohm is connectd in series with a battery of emf 2V (no internal resistance) and a resistance of 5 ohm. The potential gradient along the wire is

Two batteries one of the emf 3V, internal resistance 1 ohm and the other of emf 15 V , internal resistance 2 ohm are connected in series with a resistance R as shown . If the potential difference between a and b is zero the resistance of R in ohm is

A silver voltameter of resistance 2 ohm and a 3 ohm resistor are connected in series across a cell. If a resistance of 2 ohm is connected in parallel with the voltameter, then the rate of deposition of silver

If a current of 3 A flows through a wire of resistance 8 ohms, calculate the potential difference applied across its ends.

A student has been given 3 resistances of 3 ohms each. (a) How should he connect these resistances so as to obtain a resultant resistance of 1 ohm ? (b) Draw a labelled diagram to show the combination of these resistances.

The resistance of the four arms P, Q, R and S in a Wheatstone's bridge are 10 ohm 30 ohm and 90 ohm rerspectively. The e.m.f. and internal resistance of the cell are 7 volt and 5 ohm respectively. If the galvanometer resistance is 50 ohm , the current drawn for the cell will be

How should the two resistances of 2 ohms each be connected so as to produce an equivalent resistance of 1 ohm?