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3 marksElectric Charge, Q

CSEC Physics · 1993 · Paper 2 · Question 3(b)(ii)

A machine restores normal heartbeat by discharging a large current, storing a charge of 4 x 10^-2 C at 6 000 V.

The total charge is passed in a current lasting 5 ms. Calculate this current.

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Other parts of this question

  1. 3(a)(i)Explain why no current flows when someone touches just ONE terminal of a 12 V car battery.[1 mark]
  2. 3(a)(ii)A boy touches one terminal of a 12 V car battery with his right hand and the other terminal with his left hand simultaneously. Calculate the current flowing…[7 marks]
  3. 3(b)(i)Calculate the electrical energy that is stored in the machine.[3 marks]

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