Match the following:

Assertion (A): Conductors do not permit propagation of waves more than a short distance into the conductor at microwave frequencies.

Reason (R): The relaxation time constant for conductors is much small than the period of centimetric EM wave.

1. A signed or unsigned real variable name or a real constant is a real expression.
2. Two real expressions connected by an arithmetic operator is a real expression.
3. A real variable or constant exponential by an integer constant or integer variable is not valid

Assertion (A): In state space analysis, capacitors are taken to be in tree.

Reason (R): State variable analysis is very suitable for computer solution.

Assertion (A): When a wattmeter is used for low impedance loads, the pressure coil is connected across the load.

Reason (R): A wattmeter measures apparent power.