Electric Power And Energy Question Preview (ID: 52730)


Laws Of Power And Energy. TEACHERS: click here for quick copy question ID numbers.

The unit of power in SI unit is :
a) 1- Watt,
b) 2- Ampere ,
c) 3- Volt ,
d) 4- Joule

The unit of electric Energy :
a) 1- Watt ,
b) 2- Joule ,
c) 3- Ampere,
d) 4- Volt

The formula of power is :
a) 1-P(W) = U(v) × I(A)
b) 2- P(W) = R(Ω) × I(A)
c) 3- P(W) = U/I
d) P= U/R

The inscriptions of a lamp are written as (120V; 60W) means :
a) 1- 120 V : Rated power ,
b) 2- 60 W : Rated voltage ,
c) 3- 60 watt : Rated power ,
d) 4- None of the above choices

1 Kwatt:
a) 1- 1000watt,
b) 2- 10watt ,
c) 3- 100watt ,
d) 4-1watt

The inscriptions of a lamp are written as (120V; 60W) then the rated current :
a) 1- 1 A ,
b) 2- 3 A ,
c) 3- 0.5 A ,
d) 4- 2 A

The Reading of electric meter in our homes is in :
a) 1- Joule,
b) 2-KwattHr ,
c) 3- KJoule ,
d) 4- KWatt

The formula of energy is :
a) 1- E = P/t ,
b) 2- E = P + t
c) 3 – E = P – t ,
d) 4 – Pxt

Joule’s effect describes the energy lost in the circuit by
a) 1- Lighting ,
b) 2- Mechanical action ,
c) 3- Motion
d) 4- heating

The incandescent lamp produces Same light as Lead lamp then they have :
a) 1-Different powers ,
b) 2 -Same powers,
c) 3- Different voltages,
d) 4- Same currents

Play Games with the Questions above at ReviewGameZone.com
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 52730 in the upper right hand corner or click here.

TEACHERS / EDUCATORS
Log In | Sign Up / Register

Help / Support / FAQ




Gaming Links