Three resistors and a 6-V battery are arranged as shown in the circuit diagram.
a) Determine the equivalent resistance for this circuit. (2 pts)
b) What is the current going through the 10 Ω resistor? (2 pts)
c) What is the voltage across the 30 Ω resistor? (2 pts)
d) What is the current going through the 60 Ω resistor? (1 pts)