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Question
An electric current flowing in a wire creates ______ around the wire.
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Solution
An electric current flowing in a wire creates magnetic field around the wire.
RELATED QUESTIONS
The SI unit of charge is volt.
Why should the resistance of:
a voltmeter be very large?
Calculate the effective resistance between the points A and B in the network shown below in Figure 8.45
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 |
Calculate the amount of energy transferred by a 10 A electric current flowing through a resistor of 5 o for 15 minutes.
Define the following:
Super conductors
True or False – If False give the correct answer
The representation of the electric current is A
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