Download App

Electricity — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceElectricity1 Mark
MCQ
What is the commercial unit of electrical energy?
  • A
    Joules
  • B
    Kilojoules
  • ✓
    Kilowatt $-$ hour
  • D
    Watt $-$ hour
✓

Answer

Correct option: C.
Kilowatt $-$ hour

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q" from Electricity→Electricity — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

An electric heater is rated $100W$ and $220V$. If it is operated on $110V$. The power consumption will be :
→
What is the minimum resistance which can be made using five resistors each of $\frac{1}{5}\Omega$?
→
$n$ normal use, a current of $3.5A$ flows through a hair dryer. Choose a suitable fuse from the following :
→
A saturated hydrocarbon is shown by $\mathrm{C}_n \mathrm{H}_{20}$. The value of $n$ in this compound is :
→
Coke is move valuable when used:
→
Receptors are usually located in sense organs. Gustatory receptors are present in
→
A ray of light travelling in water falls at right angles to the boundary of a parallel-sided glass block. The ray of light:
→
Which of the following statements are true about respiration?
  1. During inhalation, ribs move inward and diaphragm is raised.
  2. The gaseous exchange takes place in the alveoli.
  3. Haemoglobin has greater affinity for carbon $-$ dioxide than oxygen.
  4. Alveoli increase surface area of the exchange of gases.
→
The early attempt to classify elements as metals and non $-$ metals was made by:
→
A good fuel is one which possesses:
→