MHT CET 2019 3rd May Morning Shift | Current Electricity Question 93 | Physics

In the network shown cell E has internal resistance $r$ and the galvanometer shows zero deflection. If the cell is replaced by a new cell of emf $2 E$ and internal resistance $3 r$ keeping everything else identical, then

MHT CET 2019 3rd May Morning Shift Physics - Current Electricity Question 37 English

The galvanometer will show deflection of 10 divisions.

The galvanometer show zero deflection,

Current will flow from $B$ to $A$.

Current will flow from $A$ to $B$.

MHT CET 2019 2nd May Evening Shift

MCQ (Single Correct Answer)

-0

The range of an ammeter of resistance ' $G$ can be increased from ' $I$ ' to ' $nI$ ' by connecting

a series resistance of $\frac{G}{n+1} \Omega$

a shunt of $\frac{G}{n-1} \Omega$

a shunt of $\frac{G}{n+1} \Omega$

a series resistance of $\frac{G}{n-1} \Omega$

MHT CET 2019 2nd May Evening Shift

MCQ (Single Correct Answer)

-0

In the given electrical circuit, which one of the following equations is a correct equation?

MHT CET 2019 2nd May Evening Shift Physics - Current Electricity Question 38 English

$E_2-i_2 r_2-E_1-i_1 r_1=0$

$E_1-\left(i_1+i_2\right) R+i_1 r_1=0$

$E_1-\left(i_1+i_2\right) R-i_1 r_1=0$

$-E_2-\left(i_1+i_2\right) R+i_2 r_2=0$

MHT CET 2019 2nd May Evening Shift

MCQ (Single Correct Answer)

-0

With a resistance of ' $X$ ' in the left gap and resistance of $9 \Omega$ in the right gap of a meter bridge, the balance point is obtained at 40 cm from the left end. In what way and to which resistance $3 \Omega$ resistance be connected to obtain the balance at 50 cm from the left end?

In series with $9 \Omega$

Parallel to $X{\Omega}$

In series with $X \Omega$

Parallel to $9 \Omega$

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