Advertisements
Advertisements
प्रश्न
Name the instrument used to control current in an electric circuit.
Advertisements
उत्तर
Rheostat is used to control the current in the circuit.
APPEARS IN
संबंधित प्रश्न
Draw circuit symbols for
fixed resistance
Draw circuit symbols for
a battery of three cells
Tell the odd one out. Give a proper explanation.
What do you understand by the open electric circuit?
When a circuit is open, _____ cannot pass through it.
In an electric circuit a fuse is a ______ ______ to prevent possible fire.
Observe the circuit given:
1. Would any of the bulbs glow when the switch is in the ‘OFF’ position?

2. What will be the order in which the bulbs A, B, and C will glow when the switch is moved to the ‘ON’ position?
Will the bulb glow in the circuit shown in the following figure? Explain.

Boojho has a cell and a single piece of connecting wire. Without cutting the wire in two, will he be able to make the bulb glow? Explain with the help of a circuit diagram.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
