Advertisements
Advertisements
Question
In an electric circuit, a battery and a bulb have been connected and the battery consists of two cells of equal potential difference. If the bulb is not glowing, then which tests will you perform in order to find out the reason for the bulb not glowing?
Advertisements
Solution
The following test should be performed to find the reason why the bulb is not glowing:
- Check how the terminals of the batteries are connected to each other: Ensure that the positive terminal of one battery is connected to the negative terminal of the other battery. If the batteries are connected in this way and even then the bulb does not glow, go for the next test given below.
- Check for the broken wires in the circuit: Ensure that the wires used for connecting the various electrical components are not broken in between, i.e., ensure that the circuit is closed. Even after ensuring that the wires are not broken in between, the bulb does not glow; move to the next test.
- Check how the connecting wires are connected to the bulb: Ensure that the bulb is connected to the batteries using the connecting wires as shown below. Even now, if the bulb does not glow, replace the bulb or the batteries with a new one.
RELATED QUESTIONS
What do the following symbols mean in circuit diagrams?
Draw the labelled diagram of an electric circuit comprising of a cell, a resistance, an ammeter, a voltmeter and a closed switch (or closed plug key). Which of the two has a large resistance : an ammeter or a voltmeter?
Observe the following figure which bulb get fuse?
Write the condition required for a circuit to be a closed circuit.
In the given circuit diagram, which of the given switch(s) should be closed. So that only bulb A glows.
In the circuit shown, which switches (L,M or N) must be closed to light up the bulb?
In which of the following circuits are the bulb connected in series?
Study the three electric circuits below. Each of them has a glass rod (G), a steel rod (S), and a wooden rod (W).
In which of the electric circuits would the bulb not light up.
In an electrical circuit two resistors of 2 Ω and 4 Ω respectively are connected in series to a 6 V battery. The heat dissipated by the 4 Ω resistor in 5 s will be
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?
