Question

(7) The current passing through a wire is proportional to the voltage applied across its ends. If the current in a wire is 2 ampere when 12 volts is applied, what will be the current when 18 volts is applied?​

Answer 1

Step-by-step explanation:

Step 1: Make circuit diagram [Refer Fig.]

Step 2: Apply KVL in loop

While applying KVL in clockwise direction, increase in voltage is considered as positive and decrease in voltage as negative.

      ∴     V−iR=0

Given  V=20 volt,R=5Ω 

 

                   ⇒  i=RV=520  = 4 A

Answer 2

Step-by-step explanation:

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