1
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-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 47 English
A
$E_2-i_2 r_2-E_1-i_1 r_1=0$
B
$E_1-\left(i_1+i_2\right) R+i_1 r_1=0$
C
$E_1-\left(i_1+i_2\right) R-i_1 r_1=0$
D
$-E_2-\left(i_1+i_2\right) R+i_2 r_2=0$
2
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-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?

A
In series with $9 \Omega$
B
Parallel to $X{\Omega}$
C
In series with $X \Omega$
D
Parallel to $9 \Omega$
3
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In moving coil galvanometer, strong horse shoe magnet of concave shaped pole pieces is used to

A
increase space for rotation of coil
B
reduce weight of galvanometer
C
produce magnetic field which is parallel to plane of coil at any position
D
make magnetic induction weak at the centre.
4
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For a metallic wire, the ratio of voltage to corresponding current is

A
independent of temperature.
B
increases with rise in temperature.
C
increases or decreases with rise in temperature depending upon the metal.
D
decreases with rise in temperature.
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