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Grade: 9

                        

An ammeter and a voltage are use to calculate the resistance of an electric device. The ammeter showed the current though the device to be 0,2a when a voltage of 32v was supplied across the device. Calculate the resistance

2 years ago

Answers : (1)

Ketan Prakash
31 Points
							
As we know,  V=iR
Since ammeter shows current in the circuit is 0.2 A and voltage in circuit is 32 V.
 i=0.2A ,  V=32v
        R=V/i
         =32/0.2
        =160 ohm
 Hence,total Resistance in the ciruit is 160 ohm.
2 years ago
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