Advertisements
Advertisements
Question
An electric cell produces electricity from the __________ ___________ in it.
Solution
An electric cell produces electricity from the chemicals stored in it.
APPEARS IN
RELATED QUESTIONS
Give two reasons why nichrome alloy is used for making the heating elements of electrical appliances.
The heat produced in a wire of resistance 'x' when a current 'y' flows through it in time 'z' is given by:
(a) x2 × y × z
(b) x × z × y2
(c) y × z2 × x
(d) y × z × x
Give a scientific reason.
Tungsten metal is used to make a solenoid type coil in an electric bulb.
Solve the following example.
Heat energy is being produced in a resistance in a circuit at the rate of 100 W. The current of 3 A is flowing in the circuit. What must be the value of the resistance?
Which of the following gases are filled in electric bulbs?
An electric component used as a safety device is electric circuit is ______.
The following is not a safety device.
An electrochemical cell converts ______ energy into ______ energy.
A fuse is used in an electric circuit to stop high currents flowing through the circuit.
An electric iron is rated 220 V, 2 kW. If the iron is used for 3h daily find the cost of running it for one week if it costs ₹ 4.25 per kWh.