Question 375Electricity/Electronics - Assistant Engineer70% to pass
What would be the voltage drop across the parallel branches of the circuit shown in figure "B" of the illustration if the source voltage is 30 volts, the resistance for R1 is 10 ohms, the resistance for R2 is 10 ohms and the resistance for R3 is 10 ohms? Illustration EL-0032
AI Explanation
The correct answer is B) 10 volts.
In a parallel circuit, the voltage drop across each branch is the same as the source voltage, which in this case is 30 volts. Since the resistors R1, R2, and R3 all have the same resistance value of 10 ohms, the current through each branch will be equal, and the voltage drop across each branch will also be the same, which is 10 volts.
The other options are incorrect because:
A) 5 volts is incorrect as the voltage drop across each parallel branch is 10 volts.
C) 20 volts is incorrect as the voltage drop across each parallel branch is 10 volts.
D) 30 volts is incorrect as the voltage drop across each parallel branch is 10 volts, not the full source voltage.
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