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In the figure current through 3 ohm resistor is 0.8A, then find the potential drop through 4 ohm resistance.

In the figure current through 3 ohm resistor is 0.8A, then find the potential drop through 4 ohm resistance.

Question Image
Grade:12

1 Answers

Arun
25763 Points
2 years ago
current through 3 ohm  = 0.8 A
 
since potential drop in parallel are same.
 
hence
0.8 * 3 = i * 6
 
i = 0.4 A
 
hence current in 6 ohm resistor = 0.4 A
 
now current in 4 ohm = 0.8 + 0.4 = 1.2 A
 
hence potential drop across 4 ohm = 4 * 1.2 = 4.8 Volts

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