मराठी

If 20 C of Charge Pass a Point in a Circuit in 1 S, What Current is Flowing?

Advertisements
Advertisements

प्रश्न

If 20 C of charge pass a point in a circuit in 1 s, what current is flowing?

Advertisements

उत्तर

Here:
Charge, Q = 20 C
Time, t = 1 s
We know that, I = Q/t
So:
Current, I = 20/1 = 20 A
Thus, the electric current flowing through the circuit is 20 A.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Electricity - Exercise 2

APPEARS IN

लखमीर सिंह Physics [English] Class 10
पाठ 4 Electricity
Exercise 2 | Q 12

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

What is an Ammeter? How is It Connected in a Circuit? Draw a Diagram to Illustrate Your Answer.


Which statement/statement is/are correct?
1. An ammeter is connected in series in a circuit and a voltmeter is connected in parallel.
2. An ammeter has a high resistance.
3. A voltmeter has a low resistance.

(a) 1, 2, 3
(b) 1, 2
(c) 2, 3
(d) 1


Which unit could be used to measure current?

(a) Watt
(b) Coulomb
(c) Volt
(d) Ampere


A car headlight bulb working on a 12 V car battery draws a current of 0.5 A. The resistance of the light bulb is:

(a) 0.5 Ω
(b) 6 Ω
(c) 12 Ω
(d) 24 Ω


In the circuit diagram given below five resistances of 10 Ω, 40 Ω, 30 Ω, 20 Ω, and 60 Ω are connected as shown to a 12 V battery. 

  

Calculate:
(a) total resistance in the circuit. 

(b) total current flowing in the circuit.

 


If the lamps are both the same in the figure given below and if A1 reads 0.50 A, what do A2, A3, A4 and A5 read? 


 Christmas tree lamps are usually wired in series. What happens if one lamps breaks?


A switch must be connected in:
(a) Live wire (b) neutral wire
(c) earth wire (d) either earth or neutral wire


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. 


Where is the main fuse in a house circuit connected?

State the commercial unit of electrical energy.

What will be the current drawn by an electric bulb of 40 W when it is connected to a source of 220 V?

Two cells each having an e.m.f. of 2 V and an internal resistance of 2Ω are
connected (a) In series, and ( b) In para 1le l as shown in fig. . What is the
current flowing through the cir cu it in each_ case?


What would be the danger involved in replacing a blown fuse with the one which would carry a large current?


Fig . shows the core of a transformer and i ts input and output connections 

State the material used for the core and describe th e structure of the core.
(a) Use the values given in the diagram to calculate the turns ratio for the transformer and connections, labeling all parts of the diagram .
(b) If a current of 2 A is taken from th e output, calculate th e current in the input circuit (Assume the transformer to be ideal ).


Three resistances, of which two are equal when connected in series have an effective resistance of 30 ohms. When the three resistances are connected in parallel, the effective resistances is 3 ohms. Find the values of the individual resistances.


Define an electric current.


Electric current passes through a metallic conductor due to the movement of ______.


What is the SI unit for the current?


What is the rate at which charges flow past a point on a circuit?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×