JEE Mains · Physics · STD 12 -7. Alternating current
Match List\(-I\) with List\(-II\)
| List\(-I\) | List\(-II\) |
| \((a)\) Phase difference between current and voltage in a purely resistive \(AC\) circuit | \((i)\) \(\frac{\pi}{2} ;\) 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 | \((iii)\) \(\frac{\pi}{2} ;\) current lags voltage |
| \((d)\) Phase difference between current and voltage in an \(LCR\) series circuit | \((iv)\) \(\tan ^{-1}\left(\frac{X_{C}-X_{L}}{R}\right)\) |
- A \((a) -( i ),( b )-( iii ),( c )-( iv ),( d )-( ii )\)
- B \((a) -( ii ),( b )-( iv ),( c )-( iii ),( d )-( i )\)
- C \((a)-(ii),(b)-(iii),(c)-(iv),(d)-(i)\)
- D \((a)-(ii),(b)-(iii), (c)-(i), ( d )-( iv )\)
Answer & Solution
Correct Answer
(D) \((a)-(ii),(b)-(iii), (c)-(i), ( d )-( iv )\)
Step-by-step Solution
Detailed explanation
\(\tan \phi=\frac{ V _{ L }- V _{ C }}{ V _{ R }}=\frac{ X _{ L }- X _{ C }}{ R }\)
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