AIPMT 2010 Prelims | Alternating Current Question 43 | Physics

AIPMT 2010 Prelims

MCQ (Single Correct Answer)

-1

In the given circuit the reading of voltmeter V₁ and V₂ are 300 volts each. The reading of the voltmeter V₃ and ammeter A are respectively

AIPMT 2010 Prelims Physics - Alternating Current Question 39 English

150V, 2.2A

220V, 2.2A

220V, 2.0A

100V, 2.0A

AIPMT 2009

MCQ (Single Correct Answer)

-1

Power dissipated in an LCR series circuit connected to an A.C. source of emf $$\varepsilon $$ is

$${{{\varepsilon ^2}\sqrt {{R^2} + {{\left( {L\omega - {1 \over {\omega }}} \right)}^2}} } \over R}$$

$${{{\varepsilon ^2}\sqrt {{R^2} + {{\left( {L\omega - {1 \over {C\omega }}} \right)}^2}} } \over R}$$

$${{{\varepsilon ^2}R} \over {\sqrt {{R^2} + {{\left( {L - {1 \over {C\omega }}} \right)}^2}} }}$$

$${{{\varepsilon ^2}R} \over {\left[ {{R^2} + {{\left( {L\omega - {1 \over {C\omega }}} \right)}^2}} \right]}}$$

AIPMT 2008

MCQ (Single Correct Answer)

-1

In an a.c. circuit the e.m.f. ($$\varepsilon $$) and the current

(i) at any instant are given respectively by
$$\varepsilon $$ = E₀sin$$\omega $$t, $$i$$ = $$I$$₀sin($$\omega $$t $$-$$ $$\phi $$)

The average power in the circuit over one cycle of a.c. is

$${{{E_0}{I_0}} \over 2}\cos \phi $$

$${{E_0}{I_0}}$$

$${{{E_0}{I_0}} \over 2}$$

$${{{E_0}{I_0}} \over 2}\sin \phi $$

AIPMT 2007

MCQ (Single Correct Answer)

-1

The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic flux $$\phi $$ linked with the primary coil is given by $$\phi $$ = $$\phi $$₀ + 4t, where $$\phi $$ is webers, t is time in seconds and $$\phi $$₀ is a constant, the output voltage across the secondary coil is

120 volt

220 volts

30 volts

90 volts.

PREVIOUS NEXT

NEET Subjects

Biology

Botany

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution