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If a charge of 420 C flows through a conducting wire in 5 minutes what is the value of the current?

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प्रश्न

If a charge of 420 C flows through a conducting wire in 5 minutes what is the value of the current?

बेरीज
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उत्तर

The current flowing through the conducting wire is

`"I" = "Charge (Q)"/"Time (t)"`

⇒ `"I" = 420/(5 xx 60) = 1.4  "A"`

Hence, the current flowing through the wire is 1.4 A.

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पाठ 3: Current Electricity - Exercise [पृष्ठ ४५]

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बालभारती Science and Technology [English] Standard 9 Maharashtra State
पाठ 3 Current Electricity
Exercise | Q 9. C. | पृष्ठ ४५

संबंधित प्रश्‍न

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(a) the combined resistance
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(c) the current flowing in the 3 Ω resistor. 

  


Using the circuit given below, state which of the following statement is correct?  

(a) When S1 and S2 are closed, lamps A and B are lit.22
(b) With S1 open and S2 closed, A is lit and B is not lit.
(c) With S2 open and S1 closed A and B are lit.
(d) With S1 closed and S2 open, lamp A remains lit even if lamp B gets fused.


 Draw a circuit diagram showing two lamps, one cell and a switch connected in series.
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  1. A and B
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(c) the resistance of 1 m length of wire of same material but of half diameter. 


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Complete the following sentence:

A fuse is connected in ........... with the .........  wire.


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Find the odd one out.

Loudspeaker, Bar magnet/magnet, Electric motor, Microphone.


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