Series-Parallel

The resistors are connected in....

• Parallel

• Series-parallel

• Parallel-series

• Series

The total resistance is....

• 18k ohm

• 13k ohm

• 15k ohm

• 10k ohm

If the voltage drop across 3k ohm=1.5V and across 10k ohm=5V, what is the voltage across 5k ohm?

• 2.4V

• 2.6V

• 2.5V

• 2.7V

What can you say about the current in this circuit?

• Big

• Small

• Same

• Increasing

The sequence of current flow in this circuit is...

• 4, 3, 2, 1

• 1, 2, 4, 3

• 1 , 2 , 3, 4

• 4, 3, 1, 2

The formula to calculate total resistance in this circuit is....

• $RT=\frac{1}{R1}+\frac{1}{R2}+\frac{1}{R3}$

• $\frac{1}{RT}=\frac{1}{R1}+\frac{1}{R2}+\frac{1}{R3}$

• RT = R1+R2+R3

• $\frac{1}{RT}=\ R1+R2+R3$

The formula to calculate total current is...

• $\frac{9V}{R1}$

• $\frac{9V}{RT}$

• $\frac{9V}{R2}$

• $\frac{9V}{R3}$

The current across R1, R2 and R3 are...

• Decreasing

• The same

• Increasing

• Not the same

The voltage across R1, R2 and R3 are...

• Increasing

• The same

• Not the same

• Decreasing

If R1 is shorted to ground, what will happen?

• Total current will decrease

• Total current will increase

• Supply voltage will increase

• Total current will be the same