- What influence can a magnetic field have on a resistor? (consider a purely ohmic resistor, leave out hall effect and the inductive component of a real resistor)
- What influence can a magnetic field have on a capacitor?
- What influence can a magnetic field have on an inductor?
If you answer these questions, you will know which component is affected by the magnetic field. Now look at the effect the magnetic field has on this component. From the effect the mag. field has on the component determine the effect of this change in component parameters on the RLC circuit.
You may also want to consider the difference between an external alternating magnetic field or a constant (DC) magnetic field
Voilá
Harald