A battery of emf \( \mathrm{E} \) and internal resistance \( \mathrm{r} \) is connected across a....

Channel:
PW Solutions
Subscribers:
445,000
Published on ● Video Link: https://www.youtube.com/watch?v=lwzQNk1iM_s


Duration: 2:30
0 views
0

A battery of emf \( \mathrm{E} \) and internal resistance \( \mathrm{r} \) is connected across a resistance R. Resistance R can
\( \mathrm{P} \)
be adjusted to any value greater than or equal to zero. A graph is plotted between the current (i)
W
passing through the resistance and potential difference (V) across it. Select the correct alternative(s).
(A) internal resistance of battery is \( 5 \Omega \)
(B) emf of the battery is \( 20 \mathrm{~V} \)
(C) maximum current which can be taken from the battery is \( 4 \mathrm{~A} \)
(D) V- i graph can never be a straight line as shown in figure.


📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2024-01-21A hollow cylinder having infinite length and carrying uniform current per unit length \( \lambda....
2024-01-21A current of \( i \) ampere is flowing through each of the bent wires as shown. The magnitude an....
2024-01-21Equal current \( i \) is flowing in three infinity long wires along positive \( x, y \) and \( z....
2024-01-21If the ratio of magnetic fields at two points in a definite direction due to a long current carr....
2024-01-21A point charge is moving in a circle with constant speed. Consider the magnetic field produced b....
2024-01-21An electrical circuit is shown in figure. The values of resistances and the currents are shown. ....
2024-01-21A part of circuit in a steady state along with the currents flowing in the branches, the values ....
2024-01-21An electrical circuit is shown in figure. The values of resistances and the currents are shown. ....
2024-01-21An electrical circuit is shown in figure. The values of resistances and the currents are shown. ....
2024-01-21A capacitor is charged by a battery. The battery is removed and another identical uncharged capa....
2024-01-21A battery of emf \( \mathrm{E} \) and internal resistance \( \mathrm{r} \) is connected across a....
2024-01-21The current through a wire depends on time as \( I=(20+4 t) \) Amp. If the charge crossed throug....
2024-01-21A metallic conductor of irregular cross-section is as shown in the figure. A constant potential ....
2024-01-21In the circuit shown, the resistances are given in ohms and the battery is assumed ideal with em....
2024-01-21The circuit diagram shown consists of a large number of element (each element has two resistors ....
2024-01-21\( \mathrm{ABCD} \) is a square where each side is a uniform wire of resistance \( 1 \Omega \). ....
2024-01-21A galvanometer may be converted into ammeter or voltmeter. In which of the following cases the r....
2024-01-21In the diagram resistance between any two junctions is R. Equivalent resistance across terminals....
2024-01-21In a galvanometer, the deflection becomes one half when the galvanometer is shunted by a \( 20 \....
2024-01-21A constant voltage is applied between the two ends of a uniform metallic wire. Some heat is deve....
2024-01-21Rate of dissipation of Joule's heat in resistance per unit volume is (symbols have usual meaning....