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प्रश्न
<p> Define the unit of electric current (or Define ampere).
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उत्तर
The SI unit of electric current is ampere.
When one coulomb of charge flows through any cross-section of a conductor in one second, the electric current flowing through it is said to be one ampere.
1 ampere= `(1coulomb)/(1second)`
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संबंधित प्रश्न
One coulomb charge is equivalent to the charge contained in:
(a) 2.6 × 1019 electrons
(b) 6.2 × 1019 electrons
(c) 2.65 × 1018 electrons
(d) 6.25 × 1018 electrons
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Which statement/statement is/are correct?
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2. An ammeter has a high resistance.
3. A voltmeter has a low resistance.
(a) 1, 2, 3
(b) 1, 2
(c) 2, 3
(d) 1
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(ii) What is the p.d. across AB and across AC?
(iii) What is the total resistance
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The SI unit for electric current is the coulomb.
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Reason (R): Current is the rate of flow of charge.
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