CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 260: a 10 Ω load is supplied at 10 V. Power dissipated is:
A. 10.00 W
B. 12.00 W
C. 11.00 W
D. 9.00 W
Correct Answer: A
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 259: a 9 Ω load is supplied at 105 V. Power dissipated is:
A. 1225.00 W
B. 1226.00 W
C. 1227.00 W
D. 1224.00 W
Correct Answer: A
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 258: a 8 Ω load is supplied at 100 V. Power dissipated is:
A. 1250.00 W
B. 1252.00 W
C. 1249.00 W
D. 1251.00 W
Correct Answer: A
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 257: a 7 Ω load is supplied at 95 V. Power dissipated is:
A. 1418.22 W
B. 1290.29 W
C. 1160.36 W
D. 1289.29 W
Correct Answer: D
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 256: a 6 Ω load is supplied at 90 V. Power dissipated is:
A. 1350.00 W
B. 1352.00 W
C. 1349.00 W
D. 1351.00 W
Correct Answer: A
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 255: a 5 Ω load is supplied at 85 V. Power dissipated is:
A. 1447.00 W
B. 1444.00 W
C. 1445.00 W
D. 1446.00 W
Correct Answer: C
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 254: a 19 Ω load is supplied at 80 V. Power dissipated is:
A. 337.84 W
B. 303.16 W
C. 336.84 W
D. 370.52 W
Correct Answer: C
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 253: a 18 Ω load is supplied at 75 V. Power dissipated is:
A. 281.25 W
B. 312.50 W
C. 343.75 W
D. 313.50 W
Correct Answer: B
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 252: a 17 Ω load is supplied at 70 V. Power dissipated is:
A. 317.06 W
B. 259.42 W
C. 288.24 W
D. 289.24 W
Correct Answer: C
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 251: a 16 Ω load is supplied at 65 V. Power dissipated is:
A. 290.47 W
B. 264.06 W
C. 265.06 W
D. 237.65 W
Correct Answer: B
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 250: a 15 Ω load is supplied at 60 V. Power dissipated is:
A. 240.00 W
B. 242.00 W
C. 241.00 W
D. 239.00 W
Correct Answer: A
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 249: a 14 Ω load is supplied at 55 V. Power dissipated is:
A. 194.46 W
B. 217.07 W
C. 237.68 W
D. 216.07 W
Correct Answer: D
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 248: a 13 Ω load is supplied at 50 V. Power dissipated is:
A. 173.08 W
B. 211.54 W
C. 193.31 W
D. 192.31 W
Correct Answer: D
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
Circuit practice 247: a 12 Ω load is supplied at 45 V. Power dissipated is:
A. 185.63 W
B. 151.88 W
C. 169.75 W
D. 168.75 W
Correct Answer: D
P = V²/R.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
An ideal transformer has Vp=1000 V, Np=500, Ns=1000. Secondary voltage is:
A. 2001 V
B. 2002 V
C. 2000 V
D. 1999 V
Correct Answer: C
Vs/Vp = Ns/Np.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
An ideal transformer has Vp=1000 V, Np=500, Ns=400. Secondary voltage is:
A. 799 V
B. 801 V
C. 802 V
D. 800 V
Correct Answer: D
Vs/Vp = Ns/Np.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
An ideal transformer has Vp=1000 V, Np=500, Ns=50. Secondary voltage is:
A. 101 V
B. 102 V
C. 99 V
D. 100 V
Correct Answer: D
Vs/Vp = Ns/Np.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
An ideal transformer has Vp=1000 V, Np=200, Ns=1000. Secondary voltage is:
A. 4999 V
B. 5001 V
C. 5002 V
D. 5000 V
Correct Answer: D
Vs/Vp = Ns/Np.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
An ideal transformer has Vp=1000 V, Np=200, Ns=400. Secondary voltage is:
A. 1999 V
B. 2002 V
C. 2001 V
D. 2000 V
Correct Answer: D
Vs/Vp = Ns/Np.
CSS - PMS - CCE - PCS - Everyday Science
Electricity and Magnetism
An ideal transformer has Vp=1000 V, Np=200, Ns=50. Secondary voltage is:
A. 250 V
B. 252 V
C. 251 V
D. 249 V
Correct Answer: A
Vs/Vp = Ns/Np.