Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

sir what is emf
Asked by vgadekar873 | 12 May, 2020, 08:34: PM
answered-by-expert Expert Answer

1) emf is the voltage developed by a source of electrical energy like a battery or a cell.
 
2) It is this voltage that drives the current through the circuit.
 
3) The name emf is the abbreviation of "electromotive force". Here, force is not the mechanical force but it is the potential or energy that the cell provides to drive the current.

Answered by Shiwani Sawant | 12 May, 2020, 09:41: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test Subjective Questions Webinar Subjective Questions Pre Board Assessment
Answered Unanswered My Questions My Answers
CBSE 10 - Physics
if one microampere current flows through a conductor for 10 seconds how many electrons will pass at the point of cross section
Asked by ruparus | 03 Nov, 2022, 10:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
In a household five tube lights of 40 volt each are used for 5 hours and electric press of 500 volt for 4 hours everyday. Calculate the total energy consumed by the tubelight and press in a month of 30 days
Asked by ksheluka41 | 03 Nov, 2022, 05:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
what is volt
Asked by dagurankur03 | 08 Apr, 2022, 09:56: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
why does need to maintain the current in a given electric circuit by expanding its energy stored in it?
Asked by ragavarshinik07 | 30 Mar, 2022, 07:17: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
The flow of electrons is opposite to the direction of the flow of current as electron is negatively charged . Then why current is defined as the flow of electrons through the conductor though current travels from positive to negative terminal.
Asked by suneethasri83 | 01 Jan, 2022, 02:59: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
If charge on one electron is 1.6 x 10 -19 C. Calculate number of electrons required to constitute 1A of current in 1s.
Asked by shashankkatekar | 28 Dec, 2021, 07:26: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
what is the power of torch bulb rated at 2.5V and 500 mA?
Asked by sunilgupta9419158173 | 20 Jul, 2021, 01:14: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
The MCB of a Rupa’s room is tripped and keeps on tripping again and again. If it is a domestic circuit, what could be the reason of this phenomenon?
Asked by swatipuspapatel | 08 Jul, 2021, 04:36: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
a current
question image
Asked by mdasifannu | 04 Jul, 2021, 10:37: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
if 20 C of charge pass a point in a circuit in 1 second what current is flowing
Asked by kamnikumari698 | 23 Jun, 2021, 08:28: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt