Download App

PHYSICS CH4 Electric Charge and Electric Current — Science STD 9 — Question

Tamilnadu BoardEnglish MediumSTD 9SciencePHYSICS CH4 Electric Charge and Electric Current2 Marks
Question
Conceptual question.

Does a solar cell always maintain the potential across its terminals constant? Discuss

✓

Answer

The electro-chemical process inside a battery provides electrons at the negative terminal and draws electrons from the positive terminal to maintain the current being drawn. By providing energy to the electrons, the cell is capable of maintaining an electric potential difference across the two ends of the external circuit.

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 Questions]" from PHYSICS CH4 Electric Charge and Electric Current→PHYSICS CH4 Electric Charge and Electric Current — all question types→Science STD 9 question papers→Tamilnadu Board STD 9 question papers→Tamilnadu Board question paper generator→

Similar questions

Mention four factors required for photosynthesis?
→
Define Average speed.
→
Numerical problem.

Calculate the speed with which a satellite moves if it is at a height of 36,000 km from the Earth’s surface and has an orbital period of 24 hr (Take R = 6370 km) [Hint: Convert hr into seconds before doing calculation]

→
How are the Wavelength and frequency of a Sound wave related to its speed?
→
What is the classification of the computer?
→
Numerical problem.

A stone is dropped from the top of a tower 750 m high into a pond of water at the base of the tower. Calculate the number of seconds for the splash to be heard? (Given g = 10 m s–2 and speed of sound = 340 m s–1)

→
A metal ball of heat capacity 50J/°C loses 2000 J of heat. By how much will its temperature fall?
→
Name the two quantities, the slope of whose graph gives (i) speed (ii) acceleration.
→
What is lateral inversion in a plane mirror?
→
A current-carrying conductor of a certain length, kept perpendicular to the magnetic field experiences a force F. What will be the force if the current is increased four times, the length is halved and the magnetic field is tripled?
→