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Chapter 21: Q4P (page 625)

In the return stroke of a typical lightning bolt, a current of 2.5×104Aexists for20μs. How much charge is transferred in this event?

Short Answer

Expert verified

Answer:

  1. The charge transferred in this event is 0.50 C.

Step by step solution

01

The given data

  1. Current of the lightning bolt,I=2.5×104A
  2. Time of the current flow,t=20μs
02

Understanding the concept of current flow

The current of a conductor can be defined as the stream of charged particles within a conductor flowing for a given time. For a charge q passing through the cross-section of the conductor in time t, the current I is given as-

I=qt········································1

03

Calculation of the charge transferred in the event

The charge transferred by the lightning bolt can be calculated using the given data in equation (1) as follows:

q=I×t=2.5×104A20×10-6s=50×10-2As=0.50C

Hence, the value of the charge transferred in the event is 0.50 C .

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