Download App

Current Electricity — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsCurrent Electricity2 Marks
Question
A particular resistance wire has a resistance of 3 ohm per meter. Find :

The potential difference of the battery which gives a current of 2 A in each of the 1.5 m length when connected in the parallel to the battery (assume that resistance of the battery is negligible).

✓

Answer

I = 2 A

V = IR = 2 x 4.5 = 9 V

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 "[2 Mark Question Answer]" from Current Electricity→Current Electricity — all question types→Physics STD 10 question papers→ICSE Board STD 10 question papers→ICSE Board question paper generator→

Similar questions

A vessel containing $50 \ kg$ of water is placed at a height 15 m above the ground. Assuming the gravitational potential energy at ground to be zero, what will be the gravitational potential energy of water in the vessel? $(g = 10 m s^{-2})$
→
(a) Explain how is land breeze caused.
(b) Why is the weather in coastal regions moderate?
→
(a) Give a list of at least five radiations, in order of their increasing frequencies, which make up the complete electromagnetic spectrum.

(b) Which of the radiation mentioned by you in part (a) has the highest penetrating power.

→
The moment of a force of 20 N about a fixed point 0 is 10 Nm. Calculate the distance of the point 0 from the line of action of the force.
→
Why does the heat supplied to a substance during its change of state not cause any rise in its temperature?
→
Define the following:
Super conductors.
→
State two impacts of global warming on the life on earth.
→
A wire of uniform thickness with a resistance of 27Ω is cut into three equal pieces and they are joined in parallel. Find the equivalent resistance of the parallel combination.
→
What is the purpose of a machine?
→
The equation$ I^2R$ seems to suggest that the rate of heating in a resistor is reduced if resistance decreases, whereas equation $P = V^2/R$ suggests just the opposite. How do you reconcile this problem?
→