• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Energy and Power

Energy and Power
If it takes 400 ms to use 12,000 J of energy, the power is

30 kW
3 W
30 W
300 kW

ANSWER DOWNLOAD EXAMIANS APP

Energy and Power
A certain appliance uses 350 W. If it is allowed to run continuously for 24 days, how many kilowatt-hours of energy does it consume?

8.4 kWh
2.01 kWh
20.16 kWh
201.6 kWh

ANSWER DOWNLOAD EXAMIANS APP

Energy and Power
A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is

4.28%
8.57%
85.7%
42.85%

ANSWER DOWNLOAD EXAMIANS APP

Energy and Power
A 33 half-watt resistor and a 330 half-watt resistor are connected across a 12 V source. Which one(s) will overheat?

neither resistor
330
both resistors
33

ANSWER DOWNLOAD EXAMIANS APP

Energy and Power
If you used 400 W of power for 30 h, you have used

12 kWh
13.3 kWh
1.2 kWh
1.3 kWh

ANSWER DOWNLOAD EXAMIANS APP

Energy and Power
The power rating of a carbon-composition resistor that is to handle up to 1.2 W should be

2 W
1 W
0.5 W
5 W

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Energy and Power

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑