One Each Day Till They Go Away (Part 2)

Electricity and Magnetism Level pending

Two DC voltage sources feed a resistor network as shown. What is the total power dissipated in all the resistors?

Bonus: How much power comes from each voltage source?

Details and Assumptions:
1) V 1 = 5 volts V_1 = 5 \, \text{volts}
2) V 2 = 10 volts V_2 = 10 \, \text{volts}
3) R = 1 Ω R = 1 \, \Omega


The answer is 37.5.

Steven Chase by Steven Chase , 37, USA

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1 solution

Talulah Riley
Jun 5, 2021

After applying star delta formula sometimes I arrived at : .
Just write K V L KVL equation for two loops A B C F A ABCFA and A B C D E F A ABCDEFA to finds the current through each resistor and use the standard formula of heat dissipation P = i 2 R P=i^{2}R .

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