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Parallel Circuits

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

Parallel Circuits /
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

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

Parallel Circuits

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

Parallel Circuits /
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

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

Parallel Circuits

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____________?

Parallel Circuits /
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

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____________? Read More »

Parallel Circuits

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_____________?

Parallel Circuits /
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

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_____________? Read More »

Parallel Circuits

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_________________?

Parallel Circuits /
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

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_________________? Read More »

Parallel Circuits