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State the Factors on Which the Strength of Electric Current Flowing in a Given Conductor Depends. - Science

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प्रश्न

State the factors on which the strength of electric current flowing in a given conductor depends.

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उत्तर

The strength of the electric current flowing in a given conductor depends on two factors:
1) The potential difference across the ends of the conductor
2) The resistance of the conductor

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पाठ 1: Electricity - Exercise 3

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संबंधित प्रश्‍न

The SI unit of charge is volt.


Define the unit of current.


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The figure given below shows an electric circuit in which current flows from a 6 V battery through two resistors. 

 

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  2. For each resistors, state the p.d. across it.
  3. The current flowing from the battery is shared between the two resistors. Which resistor will have bigger share of the current?
  4. Calculate the effective resistance of the two resistors.
  5. Calculate the current that flows from the battery.

Which is the better way to connect lights and other electrical appliances in domestic wiring: series circuits or parallel circuits? why?


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(a) Draw a circuit diagram to show the connections.
(b) Calculate the current drawn from the electric supply.
(c) Calculate the total energy consumed by the two lamps together when they operate for one hour.


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(a) 15 A (b) 5 A (c) 10 A (d) Zero


In the network shown in the following adjacent Figure, calculate the equivalent resistance between the points.  

  1. A and B
  2. A and C

 


State the relation between work, charge and potential difference for an electric circuit.


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What do you mean by A.C.?

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1 kWh = _________ J


Fill in the blank :

1 mA = ............................. A.


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b. for getting protection from electric current.
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c. to measure the current in the circuit?
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Loudspeaker, Bar magnet/magnet, Electric motor, Microphone.


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