Write the condition when terminal voltage and electromotive force… - Vidyadip

Question

Write the condition when terminal voltage and electromotive force of any battery are equal.

✓

Answer

When the internal resistance of a battery is zero or it is in open circuit which means no current is taken from it.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Current Electricity→Current Electricity — all question types→Physics STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Two identical cells, each of emf $E,$ having negligible internal resistance, are connected in parallel with each other across an external resistance $R.$ What is the current through this resistance?

The increase in the speed of a car is proportional to the additional petrol put into the engine. Is it possible to accelerate a car without putting more petrol or less petrol into the engine?

Magnetic scalar potential is defined as$\text{U}(\overrightarrow{\text{r}_2})-\text{U}(\overrightarrow{\text{r}_1})=-\int\limits^{\vec{\text{r}}_2}_{\vec{\text{r}_1}} \vec{\text{B}}.\text{d}\vec{\text{l}}.$
Apply this equation to a closed curve enclosing a long atraicht wire. The RHS of the above equation is then $-{\mu}_\text{o} \text{ i}$ by Ampere's law. We see that $\text{U}(\vec{\text{r}_2})\neq\text{U}(\vec{\text{r}_1})$ even when $\vec{\text{r}_2}=\vec{\text{r}_1}.$Can we have a magnetic acalar potential in this case?

Write following radiations in descending order of wavelengths:X-rays, Radio waves, Ultraviolet waves, Gamma rays.

The calorie ia defined as 1cal = 4.186 joule. Why not as 1cal = 4J to make the conversions easy?

A parallel plate capacitor is filled by a dielectric whose relative permittivity varies with the applied voltage $(U)$ as $\epsilon=\alpha\text{U}$ where $\alpha=2\text{V}^{-1}$. A similar capacitor with no dielectric is charged to $U_0 = 78V.$ It is then connected to the uncharged capacitor with the dielectric. Find the final voltage on the capacitors.

When the south pole of a bar magnet is taken close to a coil, then what is the direction of induced current in the coil? Explain with reason.

In Rutherford's experiment, why the mass of nucleus not important?

What is the effect on specific conductance of any electrolyte with increase in temperature?

If potential difference across the ends of any conductor in increased from V to 3 V, then how will drift velocity of electron change?