4. Raj connected 2 lamps with a battery as shown below. The current flowing through the circuit is of 6.0 A. B o X + A
(a) What does the circuit diagram tell us about the lamps?
(b) What will be the current at point B?
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V=6V
R1=2ohms
R2=3ohms
(a) Resistors are connected in parallel.
(b) p.d. across each resistor is same and is equal to 6V.
(c) 2 ohms resistance have bigger share of current because of its lower resistance.
(d) Effective resistance = R
1/R=1/2+1/3
1/R=5/6
R=1.2ohms
(e) Current flowing through battery ,
I=RV=1.26=5amps
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