In the given figure when the key is open...

In the given figure when the key is open the ammeter reading is 5 amp. What will be the ammeter reading when the key is closed

`2A `

` 9 A `

` 5 A `

`4 A `

Text Solution

Verified by Experts

Topper's Solved these Questions

TEST PAPER 1
ALLEN|Exercise PHYSICS|11 Videos
TEST PAPER 3
ALLEN|Exercise PHYSICS|41 Videos

Similar Questions

Explore conceptually related problems

The ammeter reading in the given circuit is

In the circuit shown in Fig. 6.50 , an idel ammeter and an ideal voltmeter are used. Whan the key is open, the voltmeter reads 1.53 V . When the key is closed, the ammeter reads 1.0 A and the voltmeter reads 1.03 V . The resistance R is

The ammeter reading in the given circuit of Fig . is -

In figure when key is pressed the ammeter A reads i ampere . The charge passing in the galvanometer circuit of total resistance R is Q . The mutual inductance of the two coils is

The reading of the ammeter in the following figure will be

In the given circuit in which case will the ammeter reading not change when R_2 is varied?

In the given circuit , when key K is open, reading of ammeter is I. Now key K is closed, then the correct statement is

Find the ratio ofcurrents as measured by ammeter in two cases when the key is open and when the key is closed :

The reading of the ammeter in the circuit below is

An ammeter A, a voltmeter V and a resistance R are connected as shown in the figure. If the voltmeter reading is 1.6V and the ammeter reading is 0.4 A, then R is

ALLEN-TEST PAPER 2-PHYSICS

Thirteen resistors each of resistance R connected in the circuit as sh...
Text Solution
|
The emf of the battery shown in figure is
Text Solution
|
A piece of copper and another of germanium are cooled from room temper...
Text Solution
|
The electron in hydrogen atom moves with a speed of 2.2xx10^(6)m//s in...
Text Solution
|
The current in a wire varies with time according to the equation I = ...
Text Solution
|
Calculate the resistance of a hollow cylindrical pipe of inner and out...
Text Solution
|
The resistance of each side of an equilateral triangle is 6 ohm. Calcu...
Text Solution
|
Find the effective resistance between points A and B for the network s...
Text Solution
|
In the given figure when the key is open the ammeter reading is 5 amp....
Text Solution
|
Four molecules of gas have speeds 1,2,3 and 4 km//s.The value of the r...
Text Solution
|
At what temperature RMS velocity of O2 molecule will be one third of H...
Text Solution
|
Figure shows graphs of pressure vs density for an ideal gas at two tem...
Text Solution
|
During an experiment, an ideal gas is found to obey an additional law ...
Text Solution
|
Q cal of heat is required to raise the temperature of 1 mole of a mona...
Text Solution
|
When an ideal diatomic gas is heated at constant pressure the fraction...
Text Solution
|
Internal energy of an ideal gas depends upon a) Temperature only b) vo...
Text Solution
|
Calculate the work done by the gas in the state diagram shown :
Text Solution
|
A = x + y and B = xy x = (20 pm1) cm , y = (10 pm 1) cm Then whic...
Text Solution
|
Four Screw guages are given (A) Pitch = 1 mm, no. of division circu...
Text Solution
|
Which of the following is fundamental vector quantity.
Text Solution
|