CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
An ideal transformer has Vp=120 V, Np=100, Ns=50. Secondary voltage is:
A. 62 V
B. 59 V
C. 60 V
D. 61 V
Correct Answer: C
Vs/Vp = Ns/Np.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 200 C passes a point in 20 s, current is:
A. 12 A
B. 10 A
C. 9 A
D. 11 A
Correct Answer: B
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 200 C passes a point in 10 s, current is:
A. 21 A
B. 20 A
C. 22 A
D. 19 A
Correct Answer: B
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 200 C passes a point in 5 s, current is:
A. 42 A
B. 39 A
C. 41 A
D. 40 A
Correct Answer: D
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 200 C passes a point in 2 s, current is:
A. 100 A
B. 99 A
C. 101 A
D. 102 A
Correct Answer: A
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 100 C passes a point in 20 s, current is:
A. 6 A
B. 4 A
C. 7 A
D. 5 A
Correct Answer: D
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 100 C passes a point in 10 s, current is:
A. 12 A
B. 9 A
C. 11 A
D. 10 A
Correct Answer: D
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 100 C passes a point in 5 s, current is:
A. 20 A
B. 21 A
C. 19 A
D. 22 A
Correct Answer: A
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 100 C passes a point in 2 s, current is:
A. 51 A
B. 49 A
C. 52 A
D. 50 A
Correct Answer: D
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 50 C passes a point in 20 s, current is:
A. 2.5 A
B. 3.5 A
C. 2.25 A
D. 2.75 A
Correct Answer: A
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 50 C passes a point in 10 s, current is:
A. 4 A
B. 7 A
C. 6 A
D. 5 A
Correct Answer: D
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 50 C passes a point in 5 s, current is:
A. 10 A
B. 9 A
C. 12 A
D. 11 A
Correct Answer: A
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 50 C passes a point in 2 s, current is:
A. 27 A
B. 24 A
C. 25 A
D. 26 A
Correct Answer: C
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 20 C passes a point in 20 s, current is:
A. 3 A
B. 2 A
C. 0 A
D. 1 A
Correct Answer: D
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 20 C passes a point in 10 s, current is:
A. 4 A
B. 1 A
C. 2 A
D. 3 A
Correct Answer: C
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 20 C passes a point in 5 s, current is:
A. 6 A
B. 3 A
C. 4 A
D. 5 A
Correct Answer: C
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 20 C passes a point in 2 s, current is:
A. 10 A
B. 12 A
C. 11 A
D. 9 A
Correct Answer: A
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 10 C passes a point in 20 s, current is:
A. 1.5 A
B. 0.55 A
C. 0.5 A
D. 0.45 A
Correct Answer: C
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 10 C passes a point in 10 s, current is:
A. 0 A
B. 3 A
C. 2 A
D. 1 A
Correct Answer: D
I = Q/t.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
If 10 C passes a point in 5 s, current is:
A. 2 A
B. 3 A
C. 1 A
D. 4 A
Correct Answer: A
I = Q/t.