Electric Current and Circuit

How is potential difference generated across the terminals of a cell?

If the external resistance is maximum, then the maximum current produced can be drawn is the ratio of electromotive force of the cell to the internal resistance of the cell.

Explain internal resistance of a cell. What happens if there is zero resistance in the circuit?

If current flowing in a conductor changes by 1% then power consumed will change by

An electric cell has _____ terminals.

A current of $1 \mathrm{A}$ is drawn by a filament of an electric bulb. Number of electrons passing through a cross section of the filament in $16$ seconds would be roughly.

One coulomb per second is the unit of?

How can we model the behaviour of electricity in a wire with water and a hose for students?

When $2$ coulomb of charge, flows through a circuit for $10$ seconds, calculate the current in ampere? 

A current of $5 \mathrm{A}$ flows in a circuit. How much charge (in coulomb) passes through a point in $50 \mathrm{s}$?

The current through an element is shown in the figure. Determine the total charge (in coulomb) that pass through the element at $t=5 \mathrm{s}$.

Name the metal that acts as a negative terminal in a dry cell. 
(Choose one of the following: Zinc/ Carbon).

Secondary cells are used in.

An electric bulb draws a current of $0.5 \mathrm{A}$ for $10$ minutes. Calculate the amount of electric charge (in $\mathrm{C}$) that flows through the circuit.

As a convention, in an electric circuit the direction of electric current is taken as _____ to the direction of the flow of electrons.

A current of $1.5 \mathrm{A}$ is drawn by a filament of an electric bulb for $1 \mathrm{minute}$. The amount of electric charge that flowing through the circuit will be _____?

What is the unit of Current?

At the time of short circuit, the current in the circuit:

A current of $1 \mathrm{A}$ is drawn by a filament of an electric bulb. Number of electrons passing through a cross-section of the filament in $16$ seconds would be roughly

Examine the following statements:

i. When two bodies are rubbed against each other, the charges are created.

ii. When two bodies are rubbed against each other, charges in these bodies are redistributed.

iii. When two bodies are rubbed against each other, similar charges appear on each

iv. When two bodies are rubbed against each other, dissimilar charges appear on both.

The correct statements are: