NEET Physics MCQs

🎯Difficulty :Hard

⚡ Time Required :1 mins

🔄Ncert Concepts :Cells and Combination of Cells, EMF, Internal Resistance, Terminal Voltage

2.

A battery having e.m.f. $5\,\,V$ and internal resistance 0.5 Ω is connected with a resistance of $4.5\,\,{\rm{\Omega }}$ then the voltage at the terminals of battery is

A

$4.5\,\,V$

B

$4\,\,V$

C

$0\,\,V$

D

$2\,\,V$

Question Tags

🎯Topic:Ohm'S Law Combination Of Resistors

🔄Ncert Concepts :Ohm's Law, Internal Resistance, Terminal Voltage

3.

When a Daniel cell is connected in the secondary circuit of a potentiometer, the balancing length is found to be ${\rm{540}}\,\,{\rm{cm}}$ . If the balancing length becomes ${\rm{500}}\,\,{\rm{cm}}$ when the cell is short circuited with $1\,\,{\rm{\Omega }}$ , the internal of the cell is

A

$0.08\,\,{\rm{\Omega }}$

B

$0.04\,\,{\rm{\Omega }}$

C

$1.0\,\,{\rm{\Omega }}$

D

$1.08\,\,{\rm{\Omega }}$

Question Tags

🎯Topic:Potentiometer

⚡ Time Required :3 mins

🔄Ncert Concepts :Potentiometer, Internal resistance of a cell, EMF, Terminal voltage

4.

The reading of a high resistance voltmeter when a cell is connected across it is $2.2\,\,V$ . When the terminals of the cell are also connected to a resistance of $5\,\,{\rm{\Omega }}$ the voltmeter reading drops to $1.8\,\,V$ . Find the internal resistance of the cell

A

$1.2\,\,{\rm{\Omega }}$

B

$1.3\,\,{\rm{\Omega }}$

C

$1.1\,\,{\rm{\Omega }}$

D

$1.4\,\,{\rm{\Omega }}$

Question Tags

⚡ Time Required :3 mins

🔄Ncert Concepts :electromotive force, terminal voltage, internal resistance, Ohm's law

5.

The cell has an emf of ${\rm{2}}\,\,{\rm{V}}$ and the internal resistance of ${\rm{3}}{\rm{.9}}\,\,{\rm{\Omega }}$ , the voltage across the cell will be

A

2 V

B

3.9 V

C

5.9 V

D

0 V

Question Tags

🔄Ncert Concepts :Electromotive force (EMF), Internal resistance, Terminal voltage, Ohm's law

6.

The cell has an emf of ${\rm{2}}\,\,{\rm{V}}$ and the internal resistance of ${\rm{3}}{\rm{.9}}\,\,{\rm{\Omega }}$ , the voltage across the cell will be

A

2 V

B

3.9 V

C

5.9 V

D

0 V

Question Tags

🔄Ncert Concepts :electromotive force (EMF), internal resistance, terminal voltage, Ohm's Law

7.

A battery has an emf of ${\rm{15}}\,\,{\rm{V}}$ and internal resistance of ${\rm{1}}\,\,{\rm{\Omega }}$ . Is the terminal to terminal potential difference less than, equal to or greater than ${\rm{15}}\,\,{\rm{V}}$ if the current in the battery is $\left( {\rm{1}} \right)$ from negative to positive terminal, $\left( {\rm{2}} \right)$ from positive to negative terminal $\left( {\rm{3}} \right)$ zero current?

A

Less, grater, equal

B

Less, less, equal

C

Greater, greater, equal

D

Greater, less, equal

Question Tags

🔄Ncert Concepts :electromotive force, internal resistance, terminal voltage, Ohm's law

8.

A current of $2.0\,\,ampere$ passes through a cell of e.m.f. $1.5\,\,volt$ having internal resistance of $0.15\,\,ohm$ . The potential difference measured, in $volt$ , across both the ends of the cell will be

A

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B

$\begin{array}{*{20}{l}}

{{\rm{1}}{\rm{.50}}}

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C

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{{\rm{1}}{\rm{.00}}}

\end{array}$

D

$\begin{array}{*{20}{l}}

{{\rm{1}}{\rm{.20}}}

\end{array}$

Question Tags

🔄Ncert Concepts :Electromotive force, Internal Resistance, Terminal Voltage, Ohm's Law

9.

A current of $2.0\,\,ampere$ passes through a cell of e.m.f. $1.5\,\,volt$ having internal resistance of $0.15\,\,ohm$ . The potential difference measured, in $volt$ , across both the ends of the cell will be

A

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\end{array}$

B

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C

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D

$\begin{array}{*{20}{l}}

{{\rm{1}}{\rm{.20}}}

\end{array}$

Question Tags