Download App

Electricity — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceElectricity2 Marks
Question
What is an electric current? What makes an electric current flow in a wire?
✓

Answer

An electric currrent is a flow of electric charges (electrons) through a conductor. Potential difference between the ends of the wire makes electric current to flow in the wire.

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 "Answer the questions.[Phy-2M]" from Electricity→Electricity — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

How much is this energy in MeV? (Speed of light = 3 × 10m/ s)
→
A vertical ray of light strikes the horizontal surface of some water:
  1. What is the angle of incidence?
  2. What is the angle of refraction?
→
Calorific value and ignition temperature of fuel X are 75kJ/ g and 20°C respectively. These values for fuel Y are 50kj/ g and 75°C respectively. On burning, the fuel Y produces only CO2 while fuel X produces CO2 and CO. Which of the two is a better fuel? Give two reasons to support your answer.​​​​​​​
→
A radio set draws a current of 0.36A for 15 minutes. Calculate the amount of electric charge that flows through the circuit.
→
Ciliary muscles of human eye can contract or relax. How does it help in the normal functioning
of the eye?
→
When a beam of white light is passed through a prism, it splits to form lights of seven colours. Is it possible to recombine the lights of seven colours to obtain the white light again? Explain your answer.
→
When we place a glass prism in the path of a narrow beam of white light a spectrum is obtained. What happens when a second identical prism is placed in an inverted position with respect to the first prism? Draw a labelled ray diagram to illustrate it.
→
An object is placed well outside the principal focus of a convex lens. Draw a ray diagram to show how.
→
How does use of a fuse wire protect electrical appliances?
→
An object is placed just outside the principal focus of concave mirror. Draw a ray diagram to show how the image is formed, and describe its size, position and nature.
→