मराठी

Calculate the work done in moving a charge of 4 coulombs from a point at 220 volts to another point at 230 volts. - Science

Advertisements
Advertisements

प्रश्न

Calculate the work done in moving a charge of 4 coulombs from a point at 220 volts to another point at 230 volts.

संख्यात्मक

उत्तर

Here:
Potential difference, V = 230 − 220 = 10 V
Charge moved, Q = 4 C
So, using the relation V = W/Q, we have:
W = V x Q = 10 x 4 = 40 J

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Electricity - Exercise 1

APPEARS IN

संबंधित प्रश्‍न

How much work is done when one coulomb charge moves against a potential difference of 1 volt?


What is Ohm's law? Explain how it is used to define the unit of resistance. 


For the circuit shown in the diagram below: 

 

What is the value of:
(i) current through 6 Ω resistor?
(ii) potential difference across 12 Ω resistor?


If the potential difference between the ends of a fixed resistor is halved, the electric power will become: 


Electric cells having 2V potential difference each have been connected in the form of a battery. What will be the total potential difference of the battery in both cases? 




A current of 0.2 A flows through a wire whose ends are at a potential difference of 15 V. Calculate:
(i) The resistance of the wire, and
(ii) The heat energy produced in 1 minute.


Write an expression for the electrical power spent in flow of current through a conductor in terms of current and resistance.


Suppose there are three resistors A, B, and C having resistances r1, r2, and r3 respectively. If R represents their equivalent resistance, establish the following relation R = r1 + r2 + r3 when joined in series.


A current of 100 mA. flows through a wire. The charge on an electron is 1.6 × 10-19 C. Find the number of electrons passing per second through the cross-section of the conductor.


A boy records that 4000 joules of work are required to transfer 10 coulombs of charge between two points of a resistor of 50 Ω. The current passing through it is:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×