Biomedical Engineering: Bridging Medicine and Technology 1st Edition by Veronique Tran,Mark Saltzman

Exercise 8

A circuit has three identical resistors connected in parallel across a 30 V battery. Each resistor is made of a copper wire that is 2 cm long with a diameter of 5.4 µm and a resistivity of 1.724 × 10−8 ?m.
a. Draw a diagram of the circuit.
b. What is the resistance of the resistor?
c. What is the total resistance of the circuit?
d. What is the total current?
e. What is the current through each resistor?
f. What is the voltage drop across each resistor?