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प्रश्न
उत्तर
Characteristics of fuse wire:
(i) It should have low melting point.
(ii) It should have high resistance.
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संबंधित प्रश्न
What is the Flow of Charge Called?
State the factors on which the strength of electric current flowing in a given conductor depends.
An electric circuit consisting of a 0.5 m long nichrome wire XY, an ammeter, a voltmeter, four cells of 1.5 V each and a plug key was set up.
Following graph was plotted between V and I values:
What would be the values of `V/I` rations when the potential difference is 0.8 V, 1.2 V and 1.6 V respectively?
What conclusion do you draw from these values?
What is the resistance of the wire?
Which effect of current is utilised in the working of an electric fuse?
In the network shown in the following adjacent Figure, calculate the equivalent resistance between the points.
- A and B
- A and C
The following table shows the current in Amperes and potential differences in Volts.
- Find the average resistance.
- What will be the nature of the graph between the current and potential difference? (Do not draw a graph.)
- Which law will the graph prove? Explain the law.
| V (volts) | I (amp) |
| 4 | 9 |
| 5 | 11.25 |
| 6 | 13.5 |
A current of 2A passing through the conductor produces 80 J of heat in 10 seconds. The resistance of the conductor is ______.
For current to flow, one needs art open circuit.
