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
Draw circuit symbols for
a cell
Resistances R1, R2, R3 and R4 are connected as shown in the figure. S1 and S2 are two keys. Discuss the current flowing in the circuit in the following cases.
- Both S1 and S2 are closed.
- Both S1 and S2 are open.
- S1 is closed but S2 is open.
A battery is to be formed by joining 3 dry cells with connecting wires. Show how will you connect the wires by drawing a diagram.
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?
Draw a neat diagram showing a closed electric circuit.
If you touch an electric wire carrying current you get a shock, but if on the same wire the birds sit they do not get any shock/current. Explain why?
_____ has a thin metallic filament that melts and breaks the connection when the circuit is overheated.
Explain about domestic electric circuits. (circuit diagram not required)
Assertion: In an open circuit, the current passes from one terminal of the electric cell to another.
Reason: Generally, the metal disc of a cell acts as a positive terminal.
______ is a kind of fish which is able to produce an electric current.
