A Wheatstone bridge can be used to determine an unknown_____________?

Related Mcqs:

1. When a Wheatstone bridge is in a balanced condition, the center voltmeter in the bridge will read_____________?

   A. twice the source voltage B. half the source voltage C. zero volts D. the same as the source voltage...

2. A certain Wheatstone bridge has the following resistor values: R1 = 10 kΩ, R2 = 720 Ω, and R4 = 2.4 kΩ. The unknown resistance is_____________?

   A. 24 Ω B. 2.4 Ω C. 300 Ω D. 3,000 Ω...

3. A balanced Wheatstone bridge consists of an RV of 3,500 Ω, an R2 of 200 Ω, and an R3 of 680 Ω. The value of RUNK is____________?

   A. 680 Ω B. 1,029 Ω C. 200 Ω D. 880 Ω...

4. A certain circuit is composed of two parallel resistors. The total resistance is 1,403 Ω. One of the resistors is 2 kΩ. The other resistor value is____________?

   A. 1,403 Ω B. 4.7 kΩ C. 2 kΩ D. 3,403 Ω...

5. The parallel combination of a 470 Ω resistor and a 1.2 kΩ resistor is in series with the parallel combination of three 3 kΩ resistors. A 200 V source is connected across the circuit. The resistor with the most current has a value of____________?

   A. 470 Ω or 1.2 kΩ B. 3 kΩ C. 470 Ω D. 1.2 kΩ...

6. The parallel combination of a 6.8 kΩ resistor and a 10 kΩ resistor is in series with the parallel combination of a 2.2 kΩ resistor and a 1 kΩ resistor. A 100 V source is connected across the circuit. The resistor(s) with the greatest voltage drop is (are)___________?

   A. 6.8 kΩ B. 2.2 kΩ C. 6.8 kΩ and 10 kΩ D. 2.2 kΩ and 1 kΩ...

7. Two 1.2 kΩ resistors are in series and this series combination is in parallel with a 3.3 kΩ resistor. The total resistance is____________?

   A. 138 Ω B. 1,389 Ω C. 5,700 Ω D. 880 Ω...

8. A certain voltage divider consists of three 1 kΩ resistors in series. Which of the following load resistors will have the least effect on the output voltage?

   A. 1 MΩ B. 100 kΩ C. 1 kΩ D. 330 Ω...

9. The internal resistance of a 20,000 ohm/volt voltmeter set on its 5 V range is_____________?

   A. 20,000 Ω B. 100,000 Ω C. 200,000 Ω D. 1,000,000 Ω...

10. If R1 is in series with parallel connected to R2 and R3, what happens to total current if R2 opens?

    A. cannot tell B. remains the same C. increases D. decreases...