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CBSE Class 10 Answered

NUMERICAL.
Asked by | 02 Aug, 2008, 11:01: PM
answered-by-expert Expert Answer

(i)In Series , Total resistance, Rs =  ( 1 + 2 ) =3 ohm

                    Voltage                 = 6 v

                   current =  V / Rs  =   6 / 3 = 2 ampere ; across each resistor.

So, voltage across 2 ohm resistor = 2 x 2 = 4 v

Now, power = v2 / R

                     =  42  / 2 =8 w

(ii) In parallel , voltage across each resistor remains same i.e. 4v

so ,  power =  V2 / R =   42  / 2 =8 w.

Answered by | 03 Aug, 2008, 01:06: AM

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