A $4 \mathrm{\Omega }$ resistance wire is bent in the form of a circle. Find the effective resistance between the ends of a diameter.

Calculate the equivalent resistance between points $A$ and $B$.

Calculate the equivalent resistance between points $A$ and $B$.

Simplify the above circuit so that it consists of one equivalent resistor and the battery.

What is the total current through this circuit?

Find the voltage across each resistor. Record your answers in the spaces below.

Voltage across $200 \mathrm{\Omega }$ resistor: _____

Voltage across $300 \mathrm{\Omega }$ resistor: _____

Voltage across $400 \mathrm{\Omega }$ resistor: _____

Voltage across $500 \mathrm{\Omega }$ resistor: _____

Find the current across each resistor. Record your answers in the spaces below.

Current across $200 \mathrm{\Omega }$ resistor: _____

Current across $300 \mathrm{\Omega }$ resistor: _____

Current across $400 \mathrm{\Omega }$ resistor: _____

Current across $500 \mathrm{\Omega }$ resistor: _____