Physics

2. Which of the following is equivalent to one ampere?
(Points : 1)
10 s/10 C

10 C/10 m

1.5 C/1.5 s

15 C/10 s

Question 3.3. A stream of moving charges results in a current of 5.6 A. How long does 116 C of charge take to flow past a fixed point?
(Points : 1)
2.0 s

5.6 s

11.2 s

21 s

Question 4.4. How much power does a radio use if a 12.0 V battery supplies 2.0 A of current?
(Points : 1)
0.2 W

6.0 W

12.2 W

24 W

Question 5.5. Which of the following is a reasonable power rating on an electric oven?
(Points : 1)
220 V

8.0 A

10.0 kW

50.0 kW-h

Question 6.6. Which of the following is required for electric current to flow?
(Points : 1)
battery only

copper wire only

battery and copper wire

battery and light bulb

Question 7.7. How much current does a 310 W device draw when given a voltage of 120 V?
(Points : 1)
4.0 × 102 A

2.6 × 100 A

4.2 × 102 A

3.6 × 104 A

2.) 1 A = 1 C/s

Question 3.3) 20.7 so around 21

Question 4.4.) I think you need time as well to get this answer for equation V*I*t, but is not then its 24W (Not sure on that though)

Question 5.5.) 220 V

Question 6.6.) Hint: Voltage can be likened to pressure.

Question 7.7) 2.6 × 100 A which is from the efficiency % = Wout/Win * 100

All correct... Except #5. It's 10kw.

6. Battery & copper wire.

Tay is right about 5 and 6. Bless! Thank you! :)

Question 2: To determine which of the options is equivalent to one ampere, we need to recall the definition of ampere. Ampere (A) is the unit of electric current, defined as the flow of one coulomb (C) of charge per second (s).

Option 1: 10 s/10 C
This option simplifies to 1 s/C, which is the inverse of ampere. Therefore, it is not equivalent to one ampere.

Option 2: 10 C/10 m
This option simplifies to 1 C/m, which is not equivalent to one ampere.

Option 3: 1.5 C/1.5 s
This option simplifies to 1 C/s, which is equivalent to one ampere.

Option 4: 15 C/10 s
This option simplifies to 1.5 C/s, which is not equivalent to one ampere.

Therefore, the correct answer is Option 3: 1.5 C/1.5 s.