A resistance of 10 ohms is connected in series with two resistances each of 15 ohms arrange in parallel. What resistance must be shunted across this parallel combination so that the total current shall be 1.5 amps with 20 volts applied? Draw a diagram
R1 = 10 Ohms, Given
Therefore, Total Res. (Req) is given by:
Given Current I = 1.5 A
And V = 20V
Therefore,
On solving above, R = 5.98 Or 6 Ohms.
Final Answer R = 6 Ohms
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