In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is_______________?
(A) 48 mA
(B) 12 mA
(C) 0 A
(D) 3 mA
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
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
In a phase shift oscillator, the frequency determining elements are _______________?
(A) L and C
(B) R, L and C
(C) R and C
(D) None of the above
Hartley oscillator is commonly used in______________?
(A) Radio receivers
(B) Radio transmitters
(C) TV receivers
(D) None of the above