DC Series Ciruicts

In a series circuit the applied voltage is equal to the ?

• a. sum of the resistance times the current

• b. sum of the resistance divided by the current

• c. difference of the voltage drops across each resistor

• d. sum of the resistances times the current squared

The current in a series circuit is ?

• a. equal to the sum of the currents in each component.

• b. is proportional to the resistance of the circuit.

• c. the same in all parts of the circuit.

• d. decreases as it gets closer to the negative terminal of the supply

Connecting resistors in series produces the same effect as increasing the?

• a. supply voltage

• b. cross-sectional area of resistance wire

• c. length of resistance wire

• d. supply current

When five lamps are connected in series and the third lamp burns out ?

• a. lamps one and two go out, but four and five stay on

• b. all lamps except the third lamp remain on

• c. all lamps go out

• d. the fuse blows

The voltage drop across each resistor in a series circuit is:

• a. equal to the product of current squared and resistance

• b. proportional to the conductance of each resistor

• c. inversely proportional to the supply voltage

• d. proportional to the resistance of each resistor

The total power in a series circuit may be determined by?

• a. multiplying total resistance of the circuit by current

• b. dividing supply voltage by total resistance

• c. subtracting total voltage drop from the supply voltage

• d. adding together the power taken by each component

What has the same value in all parts of a series circuit?

• Voltage

• Resistance

• Current

• Power

If three cells each having an internal resistance of 0.4Ω are connected in series, what woudl be the total internal resistance of the battery?

• 1.2 Ohms

• 1.0 Ohms

• 0.8 Ohms

• 0.4 Ohms

In a series circuit the VT or Total Volts or Supply Voltage is found by doing what?

• multiplying the voltage drops

• the sum of the voltage drops

• the division of the voltage drops

Two lamps are connected in series across a 240V supply. The voltage across one lamp is 100V. The voltage across the second lamp would be?

• 0v

• 240v

• 140v

• 160v