College physics
posted by monique .
Find the following currents.
The current I_1 through the resistor of resistance R1 = 15.0 Ohm
* The current I2 through the resistor of resistance R2 = 45.0 ohm.
* The current I3 through the resistor of resistance R3 = 20.0 Ohm.
* The current I4 through the resistor of resistance R4 = 25.0 Ohm.
Find the currents through and the potential difference across each resistor in the circuit shown on the diagram . Use the following values: EMF = 12.0 V, R1 = 15.0 ohm, R2 = 45.0 ohm, R3 = 20.0 Ohm, and R4 = 25.0 Ohm.

A diagram is needed. Use Kirchoff's circuit laws.
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