KCET · Physics · Current Electricity
The variation of terminal potential difference \( (V) \) with current flowing through as cell is as
shown
The emf and internal resistance of the cell are
- A \( 6 \vee, 2 \Omega \)
- B \( 3 \mathrm{~V}, 2 \Omega \)
- C \( 6 \mathrm{~V}, 0.5 \Omega \)
- D \( 3 \mathrm{~V}, 0.5 \Omega \)
Answer & Solution
Correct Answer
(D) \( 3 \mathrm{~V}, 0.5 \Omega \)
Step-by-step Solution
Detailed explanation
(D)
\(V=E-\) Ir
This is the form of \(: y=m x+c\)
When \(I=0, V=E=3 \mathrm{~V}\)
When \(V=0, r=\frac{E}{1}=\frac{3}{6}=0.5 \Omega\)
\(V=E-\) Ir
This is the form of \(: y=m x+c\)
When \(I=0, V=E=3 \mathrm{~V}\)
When \(V=0, r=\frac{E}{1}=\frac{3}{6}=0.5 \Omega\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- A proton, a deuteron and an \( \alpha \) - particle are projected perpendicular to the direction of a
uniform magnetic field with same kinetic energy. The ratio of the radii of the circular paths
described by them isKCET 2017 Medium - For light diverging from a finite point source,KCET 2022 Easy
- Given below are two statements:
Statement-I: The resistivity of a conductor is independent of its temperature.
Statement-II: The resistivity of a semiconductor decreases with increase in temperature.
Select the correct option.KCET 2026 Medium - Two stars \(A\) and \(B\) radiate maximum energy at the wavelength of \(360 \mathrm{~nm}\) and \(480 \mathrm{~nm}\) respectively. Then the ratio of the surface temperatures of \(A\) and \(B\) isKCET 2013 Medium
- Match the following types of nuclei with examples shown
\(\begin{array}{|l|l|}
\hline \text { Column-I } & \text { Column-II } \\
\hline \text { A. Isotopes } & \text { i. } \mathrm{Li}^7, \mathrm{Be}^7 \\
\hline \text { B. Isobars } & \text { ii. }{ }_8 \mathrm{O}^{18},{ }_9 \mathrm{~F}^{19} \\
\hline \text { C. Isotones } & \text { iii }{ }_1 \mathrm{H}^1,{ }_1 \mathrm{H}^2 \\
\hline
\end{array}\)KCET 2025 Easy - Three voltmeters A, B and C having resistances \(R, 1.5 R\) and \(3 R\) respectively are used in a circuit as shown. When a potential difference is applied between \(\mathrm{X}\) and \(\mathrm{Y}\), the readings of the voltmeters are \(V_{1}, V_{2}\), and \(V_{3}\) respectively. Then
KCET 2010 Easy
More PYQs from KCET
- \(\int_0^1 \log \left(\frac{1}{x}-1\right) d x\) isKCET 2025 Medium
- For \(\mathrm{Cu}_{2} \mathrm{Cl}_{2}\) and \(\mathrm{CuCl}_{2}\) in aqueous medium, which of the following statement is correct?KCET 2020 Easy
- The dc common emitter current gain of a n-p-n transistor is 50, The potential difference applied
across the collector and emitter of a transistor used in \( C E \) configuration is \( V_{C E}=2 V \). If the
collector resistance,
\( R_{C}=4 \mathrm{~K} \Omega \), the base current \( \left(I_{B}\right) \) and the collector current \( \left(I_{C}\right) \) areKCET 2018 Hard - If Aniline is treated with \( 1: 1 \) mixture of conc. \( \mathrm{HNO}_{3} \) and con. \( \mathrm{H} 2 \mathrm{SO}_{4}, \mathrm{p} \)-nitroaniline and \( \mathrm{m} \) -
nitroaniline are formed nearly in equal amounts. This is due toKCET 2019 Medium - Based on the first law of thermodynamics, which one of the following is correct?KCET 2010 Easy
- Which of the following system in an octahedral complex has maximum unpaired electrons?KCET 2023 Medium