If there are a total of 120 mA into a parallel circuit consisting of three branches, and two of the branch currents are 40 mA and 10 mA, the third branch current is

Consider the following statements regarding reciprocity theorem : 1. In any passive linear bilateral network, if the single voltage source Vx, in branch x produces the current response Iy, in branch y, then the removal of the voltage source from branch x and its insertion in branch y will produce the current response iy in branch x. 2. The interchange of an ideal voltage source and an ideal ammeter in any passive, linear, bilateral circuit will not change the ammeter reading. 3. The interchange of an ideal current source and an ideal voltmeter in any passive linear bilateral circuit will change the voltmeter reading. Which of the above statements are correct ?

A

1 and 3 only

B

1 and 2 only

C

2 and 3 only

D

1, 2 and 3

In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is

A

48 mA

B

12 mA

C

0 A

D

3 mA

With respect to Arabian Sea Branch and Bay of Bengal branch of the monsoon entering the Indian landmass, consider the following statements: 1. Arabian Sea Branch is much more powerful than the Bay of Bengal branch. 2. Arabian Sea Branch is divided into three distinct streams while Bay of Bengal branch is divided into two distinct streams. Which of the statements given above is/are correct ?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

Statements : All branches are flowers. All flowers are leaves.

Conclusions :
I. All branches are leaves.
II. All leaves are branches.
III. All flowers are branches.
IV. Some leaves are branches.

A

None follows

B

Only I and IV follow

C

Only II and III follow

D

All follow

E

All follow

Some birds settled on the branches of a tree. First, they sat one to a branch and there was one bird too many. Next they sat two to a branch and there was one branch too many. How many branches were there?

A

3

B

4

C

5

D

6

E

2

The following currents are measured in the same direction in a three-branch parallel circuit: 200 mA, 340 mA, and 700 mA. The value of the current into the junction of these branches is

A

200 mA

B

540 mA

C

1.24 A

D

900 mA

Which of the following are the main branches of Upper Ganga Canal 1. Farrukhabad Water Branch 2. Beaver Water Branch 3. Kanpur Water Branch 4. Etawah Water Branch 5. Bhognipur Water Branch Select the correct answer using the code given below:

A

1, 2 and 3

B

2, 3, 4 and 5

C

1, 2, 3 and 4

D

All of the above

Which of the following statements is not true with regard to Ocean currents? (i) The warm ocean currents originate near the equator and move towards the poles. (ii) The cold currents carry water from polar or higher latitudes to tropical or lower latitudes. (iii) The Labrador Ocean current is cold current while the Gulf Stream is a warm current.

A

Only (i)

B

Only (ii)

C

All (i), (ii) & (iii)

D

None of the above.

Assertion (A): All the mesh currents are necessarily the loop currents but all the loop currents may not be the mesh current. Reason (R): The mesh current is the current which flows only around the perimeter of a mesh.

A

Both (A) and (R) are true and (R) is the correct explanation of (A).

B

Both (A) and (R) are true, but (R) is not the correct explanation of (A).

C

(A) is true, but (R) is false.

D

(A) is false, but (R) is true.

The total resistance of a parallel circuit is 50 Ω. If the total current is 120 mA, the current through the 270 Ω resistor that makes up part of the parallel circuit is approximately

A

22 mA

B

120 mA

C

220 mA

D

50 mA

If there are a total of 120 mA into a parallel circuit consisting of three branches, and two of the branch currents are 40 mA and 10 mA, the third branch current is

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