Post a New Question

physics - need help

posted by on .

Resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor.
The circuit voltage is 180 volts.

Find:
the voltage of the parallel circuit

the voltage across the parallel circuit

the current through the 10 ohm resistor

  • physics - need help - ,

    The two parallel resistors behave like a single serives resistor of equivalent resistance Req
    1/Req = 1/30 + 1/60 = 1/20
    So Req = 20 ohms

    The total circuit current is
    V/R = 180/(20 + 10) = 6 Amps

    The voltage drop is 60 V across the 10 ohm resistor and 120 V across the pair of parallel resistors. You seem to be asking the same question twice.

    All of the circuit current (6A) goes through the 10 ohm resistor

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question