Kirchhoff’s rules

Three resistances 20 Ω, 30 Ω and 60 Ω are connected in parallel, their

combined resistance is given by

• 110 Ω

• 50 Ω

• 20Ω

• 10 Ω

Combined resistance of 5 Ω and 10 Ω are connected in series is equal to

• 10 Ω

• 15 Ω

• 20 Ω

• 25 Ω

Two 10 Ω resistors are connected in parallel, their equivalent resistance is

• 5 Ω

• 10 Ω

• 15 Ω

• 0.5 Ω

Three resistances 2 Ω, 3 Ω and 6 Ω are connected in parallel, their

combined resistance is given by

• 11 Ω

• 5 Ω

• 2Ω

• 1 Ω

Two 10 Ω resistors are connected in series, their equivalent resistance is

• 5 Ω

• 10 Ω

• 15 Ω

• 20 Ω

Current through each resistor when they are connected in series is

• different

• same

• decreasing

• increasing

"The total current in a parallel circuit equals the sum of the individual branch currents."

• Ohm's Law

• Kirchhoff's Voltage Law

• Kirchhoff's Current Law

• Bolen's Law

What quantity describes the rate of flow of charges or the total amount of charges moving past a point in a conductor?

• Voltage

• Electric Current

• Electric Resistance

• Electrical Power

What quantity describes the opposition to the flow of electrons in an electrical circuit?

• Voltage

• Electric Current

• Electric Resistance

• Electrical Power

Shown is the symbol of a battery used in constructing circuit diagrams. Which end is the 'positive' terminal?

• A

• B