Four 8 Ω speakers are connected in parallel to the output of an audio amplifier. If the maximum voltage to the speakers is 12 V, the amplifier must be able to deliver to the speakers_____________?

Related Mcqs:

1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. When a 1.6 kΩ resistor and a 120Ω resistor are connected in parallel, the total resistance is____________?

   A. greater than 1.6 kΩ
   B. greater than 120 but less than 1.6 kΩ
   C. less than 120 but greater than 100 Ω
   D. less than 100 Ω

10. Five 100 Ω resistors are connected in parallel. If one resistor is removed, the total resistance is______________?

    A. 25 Ω
    B. 500 Ω
    C. 100 Ω
    D. 20 Ω