If a direct current of value ampere is superimposed on an alternative current\[I=b\,\sin \,\omega t\] flowing through a wire, what is the effective value of the resulting current in the circuit?

\[{{\left[ {{a}^{2}}-\frac{1}{2}{{b}^{2}} \right]}^{1/2}}\]

\[{{\left[ {{a}^{2}}+{{b}^{2}} \right]}^{1/2}}\]

\[{{\left[ \frac{{{a}^{2}}}{2}+{{b}^{2}} \right]}^{1/2}}\]

\[{{\left[ {{a}^{2}}+\frac{{{b}^{2}}}{2} \right]}^{1/2}}\]

If a direct current of value ampere is superimposed on an alternative

1.	If a direct current of value ampere is superimposed on an alternative current\[I=b\,\sin \,\omega t\] flowing through a wire, what is the effective value of the resulting current in the circuit?
A.	\[{{\left[ {{a}^{2}}-\frac{1}{2}{{b}^{2}} \right]}^{1/2}}\]
B.	\[{{\left[ {{a}^{2}}+{{b}^{2}} \right]}^{1/2}}\]
C.	\[{{\left[ \frac{{{a}^{2}}}{2}+{{b}^{2}} \right]}^{1/2}}\]
D.	\[{{\left[ {{a}^{2}}+\frac{{{b}^{2}}}{2} \right]}^{1/2}}\]
Answer» E.