A hot plate of an electric oven connected to a `220 V` lines has two resistance coils `A and B`, each of `24 Omega` resistance, which may be used separately, in series or in parallel. What are the currents in the three cases ?

An electric heater which is connected to a 220V supply line has two resistance coils A and B of 24 Omega resistance each. These coils be used separately (one at a time), in series or in parallel. Calculate the current drawn when: (a) only one coil A is used. (b) coils A and B are used in series. (c) coils A and B are used in parallel.

How much current does an electric heater draw from a 220 V line, If the resistance of the heater (when hot) is 50 Omega ?

Three wires each have resistance 2Omega , if we connect 2 in series with one parallel to the combination the equivalent resistance is

Three equal resistances each of 3Omega are in series and connected to a cell of internal resistance one ohm. If these resistance are in parallel and connected to the same cell, then the ratio of the respective currents through the electric circuits in the two cases is

Three resistors of 2 Omega, 3 Omega and 4 Omega are connected in (a) series (b) parallel. Find the equivalent resistance in each case.

How much current will an electric heater coil draw from a 220 V source, if the resistance of the heater is 100Omega ?