+20V R1 R2 R3 Answer the following questions about the given circuit, assuming that R1 = 12 ohms, R2 = 14 ohms, and R3 = 10 ohms. 1) What is the total resistance in the circuit? 2) What is the current flowing through R3? 3) Which bulb will be the brightest?

Consider the circuit below. [Answer in 2 significant figures] a a) b b) value. c) L 0.25 A d) 10 Q2 >M 0.1 A R = ? 20 Ω www 10 Ω www I= ? What is the potential difference between a and b? What is the equivalent resistance of the circuit? 5Ω What is the current l? How much power is dissipated by the unknown resistor R? You should have a numerical

Given the circuit below, determine the magnitude of the current through the 20-volt source.

A simple circuit with light bulbs and a battery is shown below: B fe A E F H K L 1. Which of the light bulbs (if any) do NOT light up because they have negligible current? 2. Which of the light bulbs (if any) in the are connected in series to each other? 3. If each light bulb has a resistance R, what is the effective or equivalent resistance of the circuit in terms of R?