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___________?

Related Mcqs:

1. 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

2. Three 47 Ω resistors are connected in parallel across a 110 volt source. The current drawn from the source is approximately_______________?

   A. 2.3 A
   B. 780 mA
   C. 47 mA
   D. 7.06 A

3. 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

4. Four equal-value resistors are connected in parallel. Ten volts are applied across the parallel circuit and 2 mA are measured from the source. The value of each resistor is______________?

   A. 12.5 Ω
   B. 200 Ω
   C. 20 KΩ
   D. 50 Ω

5. 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

6. The following resistors are in parallel across a voltage source: 220Ω , 470Ω , and 560Ω . The resistor with the least current is______________?

   A. 220 Ω
   B. 470 Ω
   C. 560 Ω
   D. impossible to determine without knowing the voltage

7. 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

8. The total resistance of a parallel circuit is 50 Ω. If the total current is 120 mA, the current through the 270 Ω that makes up part of the parallel circuit is approximately_______________?

   A. 22 mA
   B. 120 mA
   C. 220 mA
   D. 50 mA

9. An ammeter has an internal resistance of 50 Ω. The meter movement itself can handle up to 1 mA. If 10 mA is applied to the meter, the shunt resistor, RSH1, is approximately___________?

   A. 55 Ω
   B. 5.5 Ω
   C. 50 Ω
   D. 9 Ω

10. Four resistors are connected in parallel. Fifteen mA flows through resistor R. If the second resistor is 2R, the third resistor 3R, and the fourth resistor 4R, the total current in the circuit is______________?

    A. 60 mA
    B. 15 mA
    C. 135 mA
    D. 31.25 mA