Five light bulbs are connected in parallel across 110 V. Each bulb is rated at 200 W. The current through each bulb is approximately___________?

A. 2.2 a
B. 137 ma
C. 1.8 a
D. 9.09 a

A set of Christmas tree lights is connected in parallel across a 110 V source. The filament of each light bulb is 1.8 k. The current through each bulb is approximately___________?

A. 610 ma
B. 18 ma
C. 110 ma
D. 61 ma

Three lights are connected in parallel across a 120 volt source. If one light burns out_____________?

A. The remaining two will glow dimmer
B. The remaining two will glow brighter
C. The remaining two will not light
D. The remaining two will glow with the same brightness as before

When an additional resistor is connected across an existing parallel circuit, the total resistance____________?

A. Remains the same
B. Decreases by the value of the added resistor
C. Increases by the value of the added resistor
D. Decreases

Four resistors of equal value are connected in parallel. If the total voltage is 15 V and the total resistance is 600 Ω, the current through each parallel resistor is____________?

A. 25 ma
B. 100 ma
C. 6.25 ma
D. 200 ma

The currents into a junction flow along two paths. One current is 4 A and the other is 3 A. The total current out of the junction is_____________?

A. 1 a
B. 7 a
C. Unknown
D. The larger of the two

If there are a total of 120 mA into a parallel circuit consisting of three branches, and two of the branch currents are 40 mA and 10 mA, the third branch current is_________________?

A. 50 ma
B. 70 ma
C. 120 ma
D. 40 ma

The power dissipation in each of four parallel branches is 1.2 W. The total power dissipation is________________?

A. 1.2 w
B. 4.8 w
C. 0.3 w
D. 12 w

The size of the earth or ground wire is based on the______________?

A. Maximum fault current carrying through the ground wire
B. Rated current carrying capacity of the service line
C. Depends on the soil resistance
D. Both (a) and (c)

Generally grounding is provided for

A. Only for the safety of the equipment
B. Only for the safety of the operating personnel
C. Both (a) and (b)
D. None of the above