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4 March, 06:54

Select the correct answer

Sam constructs a circuit connects a lead acid battery of 2 v to a lamp of resistance 3 and places an ammeter across it. What must be the

reading of the ammeter?

A 0.66 A

B 0.5 A

C 0.54 A

0.61 A

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Answers (1)
  1. 4 March, 07:06
    0
    Option A

    0.66 A

    Explanation:

    From Ohm's law, I=V/R where is the current in Amperes, V is the voltage and R is the resistance, from the given information, resistance is 3 Ohms and V is 2 V hence

    I=2/3=0.6666667 A

    Therefore, the reading on ammeter is 0.66 A
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