Calculate the current in each resistor

[secret5437]

Homework Statement

(a) Find the equivalent resistance between points a and b in Figure P18.5 (R = 15.0 ).
(refer to physics.gif for parts a. and b.)

(b)Calculate the current in each resistor if a potential difference of 34.0 V is applied between points a and b.

A (4.00 resistor)
A (7.00 resistor)
A (15.0 resistor)
A (9.00 resistor)

2. Find the equivalent resistance of the circuit in Figure P18.6. (R1 = 16 , R2 = 13 )
(refer to physics2.gif for this problem)

Homework Equations

V = IR

The Attempt at a Solution

Honestly, I have NO idea where to start.

 

[skeptic2]

You're missing a relevant equation. What is the equivalent resistance of two or more parallel resistors?

R(eq) = ?