How much current does a Geyser rated 2 KW draw when connected to 230V supply?

An electric kettle has a resistance of 160 Omega . What current will flow when it is connected to a 240 V supply?

An electric bulb is marked 100 w - 230 V . How much energy is produced in 20 miutes when operted at 230 V ?

An electric toaster uses nichrome for its heating element. When a negligibly small current passes through it, its resistance at room temperature (27.0^@C is found to be 75.3Omega When the toaster is connected to a 230V supply, the current settles, after.a few seconds, to a steady value of 2.68A. What is the steady temperature of the nichrome element ? The temperature coefficient of resistance averaged over the temperature range involved, is 1.70xx10^(-4)//C^@

A zener diode has break down voltage of 5.0 V. The resistance required to allow a current of 100 mA through the zener in reverse bias when connected to a battery of emf 12V is

An electric bulb is connected to battery of e.m.f. 10V and 0.01 A current is flowing through the bulb. But when it is connected to 220V mains then the cureent is 0.05 A. Explain this apparent discrepancy with ohm's law.

Heat is produced at a rate given by H in a resistor when it is connected across a supply of voltage V. If now the resistance of the resistor is doubled and the supply voltage is made V/3 then the rate of production of heat in the resistor will be

Each of two electric lamps has a voltage rating V and a watt rating P .If they are joined in series and are connected to a supply line of V volt , then ,

A circuit containing a 80 mH inductor and a 60muF capacitor in series is connected to a 230 V , 50 Hz supply. The resistance of the circuit is negligible. Obtain the current amplitude and rms values.

A circuit containing a 80 mH inductor and a 60muF capacitor in series is connected to a 230 V , 50 Hz supply. The resistance of the circuit is negligible. What is the total average power absorbed by the circuit?