Question

two resistor of r1 and r2 of 4ohm and 6ohm connected in parralel across a battery . the ratio of power dissipated P1 :P2 WILL BE

Answer 1

Answer:

(a) V= 6V

Req = 1/R1 + 1 /R2 = 1/4 + 1/6 = 5/12 = 12/5 ohm = 2.4 ohm

According to ohm's law ,

V = IR

I = V/R

I = 6/2.4

I = 2.5 A

(b) 1) V = 6 V , R= 6 ohm , I = ?

I = V/R

I = 6/6

I = 1 A

2) V = 6V , R = 4 ohm , I = ?

I = V/R

I = 6 /4

I = 1.5 A

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