Advertisements
Advertisements
प्रश्न
Higher Order Question
A student made a circuit by using an electric cell, a switch, a torch bulb (fitted in the bulb holder), and copper connecting wires. When he turned on the switch, the torch bulb did not glow at all. The student checked the circuit and found that all the wire connections were tight.
- What could be the possible reason for the torch bulb not glowing even when the circuit appears to be complete?
Advertisements
उत्तर
The possible reasons so that even at switch ‘ON’ position the bulb is not glowing are:
- The cell may be discharge
- The bulb may be fused.
- The wire may be broken from inside
- The connection may be loose.
APPEARS IN
संबंधित प्रश्न
Redraw the circuit of question 1, putting in an ammeter to measure the current through the resistors and a voltmeter to measure the potential difference across the 12 Ω resistors. What would be the readings in the ammeter and the voltmeter?
What do the following symbols mean in circuit diagrams?
How does the short circuit form? What is its effect?
Nowadays MCBs are used in homes, for stop the current in the circuit which suddenly increases.
The switch is used to close or open an electric circuit.
In a simple circuit, why does the bulb glow when you close the switch?
Name the device used these days in place of electric fuses in electrical circuits.
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?
A complete circuit is left on for several minutes, causing the connecting copper wire to become hot. As the temperature of the wire increases, the electrical resistance of the wire
