Question

Does the current flowing in the main circuit have the same magnitude at the current flowing through resistor in parallel circuit?

Answer 1

Voltage can be thought of as the pressure pushing charges along a conductor, while the electrical resistance of a conductor is a measure of how difficult it is to push the charges along. Using the flow analogy, electrical resistance is similar to friction. For water flowing through a pipe, a long narrow pipe provides more resistance to the flow than does a short fat pipe. The same applies for flowing currents: long thin wires provide more resistance than do short thick wires.
The resistance (R) of a material depends on its length, cross-sectional area, and the resistivity (the Greek letter rho), a number that depends on the material

Answer 2

Absolutely Yes.

When an electic component flowing through a parallel circuit, the current through them is same and the potential differnce varies.

However, the output of current will be less from the resistor.

-WonderGirl