Magnetic induction at the centre of a circular loop of area $\pi \ m^2$ is $0.1 \ T$. The magnetic moment of the loop is ( $\mu_0 = \text{permeability of air}$ ).

Which of the following is responsible for mechanical support, enzyme transport and protein synthesis?

If $C$ is the midpoint of $AB$ and $P$ is any point outside $AB$,then:

Find the equivalent capacitance across $A$ and $B$ in $\mu F$.

When a certain circuit consisting of a constant $emf$ $E$,an inductance $L$,and a resistance $R$ is closed,the current in it increases with time according to curve $1$. After one parameter ($E$,$L$,or $R$) is changed,the increase in current follows curve $2$,when the circuit is closed a second time. Which parameter was changed and in what direction?

Data Entry - Physics