Question 198: AC fundamentals

Question

Match List - I with List - II

List - I

List - II

(a)
Phase difference between current and voltage in a purely resistive AC circuit
(i)
$${\pi  \over 2}$$; current leads voltage

(b)
Phase difference between current and voltage in a pure inductive AC circuit
(ii)
zero

(c)
Phase difference between current and voltage in a pure capacitive AC circuit
(iii)
$${\pi  \over 2}$$; current lags voltage

(d)
Phase difference between current and voltage in an LCR series circuit
(iv)
$${	an ^{ - 1}}\left( {{{{X_C} - {X_L}} \over R}} ight)$$

Choose the most appropriate answer from the options given below :

Accepted Answer

(a) phase difference b/w current & voltage in a purely resistive AC circuit is zero
(b) phase difference b/w current & voltage in a pure inductive AC circuit is $${\pi  \over 2}$$; current lags voltage.
(c) phase difference b/w current & voltage in a pure capacitive AC circuit is $${\pi  \over 2}$$; current lead voltage.
(d) phase difference b/w current & voltage in an LCR series circuit is = $${	an ^{ - 1}}\left( {{{{X_C} - {X_L}} \over R}} ight)$$

Answer

(a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)

Answer

(a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)

Answer

(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)

Answer

(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)

AC fundamentals

Choose the correct answer: