English

The Work Done in Moving a Unit Charge Across Two Points in an Electric Circuit is a Measure Of: (A) Current (B) Potential Difference (C) Resistance (D) Power

Advertisements
Advertisements

Question

The work done in moving a unit charge across two points in an electric circuit is a measure of: 

(a) current
(b) potential difference
(c) resistance
(d) power

Advertisements

Solution

 potential difference                                                                                                                                                    
The work done in moving a unit charge across two points in an electric circuit is a measure of potential difference.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Electricity - Exercise 1

APPEARS IN

Lakhmir Singh Physics (Science) [English] Class 10
Chapter 1 Electricity
Exercise 1 | Q 17

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Three 2 V cells are connected in series and used as a battery in a circuit.

 What is the p.d. at the terminals of the battery?


Which of the following equation shows the correct relationship between electrical unit? 

1A = 1C/s or 1c= 1A/s 


Which of the two is connected in series : ammeter or voltmeter?


Fill in the folloing blank with suitable words:

 A current is a flow of ............... .For this to happen there must be a ............... circuit.


A Radio Set Draws a Current of 0.36 a for 15 Minutes. Calculate the Amount of Electric Charge that Flows Through the Circuit. 


What is the conventional direction of the flow of electric current? How does it differ from the direction of flow electrons?


You can given one hundred 1 Ω resistors. What is the smallest and largest resistance you can make in a circuit using these?


Using the circuit given below, state which of the following statement is correct?  

(a) When S1 and S2 are closed, lamps A and B are lit.22
(b) With S1 open and S2 closed, A is lit and B is not lit.
(c) With S2 open and S1 closed A and B are lit.
(d) With S1 closed and S2 open, lamp A remains lit even if lamp B gets fused.


State two differences between the e.m.f and terminal voltage of a cell. 


Calculate the electric current supplied by a 12 V battery of an automobile to a starter that develops a power of 2.4 kW.

Are switches connected in the neutral or live wire?

Find the effective resistance in the following circuit diagrams (Fig.):


A current of 0.3 A is flowing through a branch of 6 Ω resistors in a junction as shown in fig. . Calculate the
(a) P.d. across the junction XY,
(b) Current flowing through 9Ω and 24Ω
( c) P.d. across 24 Ω resistor, and
( d) e.m.f. of the cell.


An electric oven is rated as 1.5 kW, 250 V. If it is connected to a 250 V mains, calculate the
(a) Current drawn,
(b) Energy consumed in 20 hours,
(c) Cost of energy consumed in 20 hours at the rate of Re. 1 per unit.


State whether the current is a scalar or vector?


What determines the direction of flow of electrons between two charged conductors kept in contact?


The power of an electric device is a product of ______ and ______.


  1. What is meant by electric current?
  2. Name and define its unit.
  3. Which instrument is used to measure the electric current? How should it be connected in a circuit?

Conventionally, the direction of the current is taken as:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×