A 12 V battery is connected across a network with a 4 Ω resistor in series with two 6 Ω resistors in parallel. What is the current through the 4 Ω resistor?

A2.0 A

B1.71 A

C3.0 A

D0.86 A

Free sample questions available. No credit card required.

The diagram shows electric field lines around two point charges. What is the sign of each charge?

In the circuit shown, a 12 V battery drives current through two resistors in series: R₁ = 4 Ω and R₂ = 8 Ω. What is...

The diagram shows a straight wire carrying current I to the right, placed in a magnetic field B pointing INTO the...

The diagram shows energy levels of an atom. An electron transitions from level n = 3 to level n = 1. What happens?