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What is the current in a circuit if the ...

What is the current in a circuit if the charge passing through each point is 20 C in 40 s?

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Given, Charge = Q = 20 C, Time = t = 40 sec
As we know that current is the rate of flow of charge or by ohm.s law we can say
Charge [Q] = current [I] `xx` time [t]
`I=Q/trArrI=20/40=1/2amp.=0.5amp.`
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ZEN PUBLICATION-ELECTRICITY-ZEN ADDITIONAL QUESTIONS SECTION (VERY SHORT ANSWER TYPE QUESTIONS)
  1. What is the SI unit of electric current?

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  2. Compare how an ammeter and a voltmeter are connected in a circuit.

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  3. What is the current in a circuit if the charge passing through each po...

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  4. Name the unit of electrical resistance and give its symbol.

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  5. A resistance of 20 ohms has a current of 2 amperes flowing in it. What...

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  6. A current of 5 amperes flows through a wire whose ends are at a potent...

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  7. Give the law of combination of resistances in series.

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  8. State the law of combination of resistances in parallel.

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  9. Two resistances x and y are connected i] in parallel and, ii] in s...

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  10. What is the SI unit of [i] electric energy, and [ii] electric power?

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  11. Explain why, filament type electric bulbs are not power efficient.

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  12. Resistance of an incandescent filament of a bulb is comparatively much...

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  13. What happens to the other bulbs in series circuit, if one bulb blows o...

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  14. Calculate the number of electrons constituting one coulomb of charge.

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  15. State the relationship between 1 ampere and 1 coulomb.

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  16. State the relationship between 1 volt and 1 joule.

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  17. Would electrons move from higher potentials to lower potentials or vic...

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  18. Why is a voltmeter connected in parallel across a circuit element?

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  19. What is the SI unit of potential difference ? Name the device used to ...

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  20. What is meant by saying that the electric potential at a point is Ivol...

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