There are 4 resistors, each having the same resistance of 4 ohms. Thes – McqOptions

MCQOPTIONS

1.	There are 4 resistors, each having the same resistance of 4 ohms. These are first connected in series with a cell of internal resistance 2 ohms. Then, they are connected in parallel to the same cell. Find the ratio of the respective currents in the two cases.
A.	1:8
B.	1:7
C.	1:6
D.	6:1
Answer» D. 6:1

Discussion

No Comment Found

Related MCQs

A battery of emf 10V has an internal resistance of 1 ohms and is charged by a 150V dc supply using a series resistance of 19 ohms. What is the terminal voltage of the battery?
When cells are connected incorrectly in series, total internal resistance is also affected.
n cells have emf e and internal resistance r and connected to an external resistance R . They pass the same current whether the cells are connected in series or in parallel to each other. Then which of the following conditions are true?
36 cells, each of emf 4V are connected in series and kept in a box. The combination shows an emf of 88V on the outside. Calculate the number of cells reversed.
There are 4 resistors, each having the same resistance of 4 ohms. These are first connected in series with a cell of internal resistance 2 ohms. Then, they are connected in parallel to the same cell. Find the ratio of the respective currents in the two cases.
In parallel grouping of cells, we obtain more current.
Calculate the number of dry cells, each of emf 2V and internal resistance 1V that is joined in series with a resistance of 30 ohms so that a current of 0.8A passes through it.
Which of the following is correct when one cell is wrongly connected in series circuit?
What will be the grouping of cells when the current in the circuit is ( frac {ne}{(R + nr)} )?