1
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

The potential difference between the points $$\mathrm{P}$$ and $$\mathrm{Q}$$ of the arrangement shown in figure is

COMEDK 2024 Afternoon Shift Physics - Current Electricity Question 21 English

A
$$-9.3$$ V
B
42 V
C
$$-42$$ V
D
$$-3.9$$ V
2
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

An electron starting from rest and moving with the velocity $$\mathrm{v}$$ through a potential difference $$\mathrm{V}$$ is shown by the graphs below. Identify the correct graph.

A
COMEDK 2024 Afternoon Shift Physics - Current Electricity Question 23 English Option 1
B
COMEDK 2024 Afternoon Shift Physics - Current Electricity Question 23 English Option 2
C
COMEDK 2024 Afternoon Shift Physics - Current Electricity Question 23 English Option 3
D
COMEDK 2024 Afternoon Shift Physics - Current Electricity Question 23 English Option 4
3
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

Two identical moving coil galvanometers have $$10 \Omega$$ resistance and full-scale deflection at $$2 \mu \mathrm{A}$$ current. One of them is converted into a voltmeter of range $$10 \mathrm{~mV}$$ and the other into an ammeter of range $$1 \mathrm{~mA}$$ using appropriate resistors. The ratio of resistance of the converted voltmeter to that of the ammeter is

A
5000 : 1
B
2500 : 1
C
250000 : 1
D
25000 : 1
4
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

A wire of uniform cross section and resistance 4 ohms is bent in the shape of square ABCD. Point A is connected to a point $$\mathrm{P}$$ on DC by a wire AP of resistance $$1 \mathrm{ohm}$$. When a potential difference is applied between $$\mathrm{A}$$ and $$\mathrm{C}$$, the points $$\mathrm{B}$$ and $$\mathrm{P}$$ are seen to be in same potential. What is the resistance of part $$\mathrm{DP}$$ ?

COMEDK 2024 Afternoon Shift Physics - Current Electricity Question 22 English

A
$$ \sqrt{2}-1 $$ Ohm
B
2 Ohm
C
1 Ohm
D
Zero Ohm
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