200J of heat is produced each second in a `5Omega` resistance. Find the potential difference across the resistor.

In series circuit, potential difference across each resistor is always the same.

Redraw the circuit of Question 1, putting in an ammeter to measure the current throuch the resistor and a voltameter to measure the potential difference across the 12Omega resistor. What would be the reading in the ammeter and the voltameter?

Three capacitors whose capacitances are 5, 10 and 50 microfarads are connected in series across a 12 volt battery. Find the potential difference across each of them.

With reference to the circuit shown in Fig. find the following: Potential difference across the parallel.

A capacitor and resistor are connected in series with an ac source. If the potential difference across C and R are 120 V and 90V respectively and if the rms current of the circuit is 3A, calculate (i) impedance and (ii) power factor of the circuit.

Two cell of emf. 1.5v and 2 v and internal resistance 2 and 1Omega respectively have their negative terminal joined by a wire of 6Omega and positive terminal by another wire of 4Omega A third resistance of 8Omega connected mid point of these wire. Find the potential difference at the end of the third wire.

Let the resistance of an electrical component remains constant while the potential difference across the two ends of the component decreases to half of its former value. What change will occur in the current through it?