(a) Give one use of electromagnetic radiations obtained in nuclear disintegrations.
(b) Give one example each to illustrate the situation where there is (i) displacement current but no conduction current and (ii) only conduction current but no displacement current.
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(b) (i) The region between the capacitor plates connected to a time-varying voltage source has displacement current but no conduction current.
(ii) A circuit without capacitor carrying a current has conduction current but no displacement current.