Electromagnetism
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Alternating Current
MCQ (Single Correct Answer)
Modern Physics
Dual Nature of Radiation
MCQ (Single Correct Answer)
Semiconductor Devices and Logic Gates
MCQ (Single Correct Answer)
Communication Systems
MCQ (Single Correct Answer)
1
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

A potentiometer wire is $$4 \mathrm{~m}$$ long and potential difference of $$3 \mathrm{~V}$$ is maintained between the ends. The emf of the cell, which balances against a length of $$100 \mathrm{~cm}$$ of the potentiometer wire is

A
0.60 V
B
0.50 V
C
0.25 V
D
0.75 V
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A potentiometer wire has length $L$ For given cell of emf $E$, the balancing length is $\frac{L}{3}$ from the positive end of the wire. If the length of potentiometer wire is increased by $50 \%$, then for the same cell, the balance point is obtained at length

A
$\frac{L}{2}$ from positive end
B
$\frac{L}{5}$ from positive end
C
$\frac{L}{3}$ from positive end
D
$\frac{L}{4}$ from positive end
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

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

A
The galvanometer will show deflection of 10 divisions.
B
The galvanometer show zero deflection,
C
Current will flow from $B$ to $A$.
D
Current will flow from $A$ to $B$.
4
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

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

A
a series resistance of $\frac{G}{n+1} \Omega$
B
a shunt of $\frac{G}{n-1} \Omega$
C
a shunt of $\frac{G}{n+1} \Omega$
D
a series resistance of $\frac{G}{n-1} \Omega$
Questions Asked from MCQ (Single Correct Answer)
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