1. Which one of the following voltages should never be measured directly with a VOM?
A. 100 V
B. 500 V
C. 800 V
D. 1,200 V
2. Which of the following is the correct formula for finding power in a DC circuit?
A. P = IR
B. P = I2R
C. P = ER
D. P = E2I
3. What is the voltage in a circuit with a resistance of 100 W and a current of 0.04 A?
A. 4 V
B. 8 V
C. 10 V
D. 40 V
4. The pointer of an analog meter is connected to a
A. permanent magnet.
B. electromagnet.
C. coil suspended by bearings.
D. voltage to frequency converter circuit.
5. What is the resistance in a circuit that has a voltage of 60 V and a current of 2 A?
A. 10 W
B. 30 W
C. 60 W
D. 120 W
6. What is the power dissipated by a resistor with a current of 0.02 A and a resistance of 1,000 W?
A. 0.4 W
B. 4 W
C. 20 W
D. 200 W
2006-11-13 08:18:41 · 7 answers · asked by atomiccobra 2 in Science & Mathematics ➔ Engineering
7. In a circuit, two resistors of 100 W and 80 W are connected in parallel. The parallel group is then connected in series with a 100 W resistor. What is the total resistance of the circuit?
A. 280 W
B. 144 W
C. 120 W
D. 44 W
8. What is the power of a parallel circuit with a resistance of 1,000 W and a current of 0.03 A?
A. 0.09 W
B. 0.9 W
C. 9 W
D. 30 W
2006-11-13 08:19:23 · update #1
When you copy and paste these, why don't you convert the "W"s into "ohms"?
Hey! The guy who did your homework for you ("The Great One") gave three WRONG answers (as of 1930 MST 11-14. He'll probably redo it after he reads this)...heh, heh, heh...
2006-11-13 08:39:33 · answer #1 · answered by pack_rat2 3 · 0⤊ 1⤋
Several of your questions contain either typographical errrors or inherently false information.
Power is measured in volt-amperes (also known as watts).
Resistance is measured in volt-per-ampere (also known as ohms).
You simply cannot have a resistance of ???? watts.
As for the rest ... the only (perhaps) legitimate question would be the fourth one - its answer is the coil-and-bearing assembly. It makes sense - all the other configurations can be affected by the parameter you're trying to measure.
2006-11-13 08:42:59 · answer #2 · answered by CanTexan 6 · 1⤊ 1⤋
Shouldn't you be doing your own homework? This is not a suitable question for Yahoo! Answers.
2006-11-13 08:26:05 · answer #3 · answered by Anonymous · 1⤊ 1⤋
Are you trying to get the easy answers to your homework?
2006-11-13 08:25:29 · answer #4 · answered by Ralfcoder 7 · 1⤊ 1⤋
DO you own homework and you'll find that you retain the information...read this.
2006-11-13 08:27:47 · answer #5 · answered by Anonymous · 1⤊ 1⤋
Use Ohm's Law and do the math. This is the best way to LEARN it! ;-)=
2006-11-13 08:28:07 · answer #6 · answered by Jcontrols 6 · 1⤊ 1⤋
1-d
2-b
3-a
4-c
5-b
6-c
7-d
8-d
hope this help!!!!!
2006-11-13 13:18:32 · answer #7 · answered by The Apostle 2 · 0⤊ 1⤋