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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

jee_main_2024_30_jan_morning - Alternating Current Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #41 Transformers
Primary coil of a transformer is connected to 220mathrmV ac. Primary and secondary turns of the transforms are 100 and 10 respectively. Secondary coil of transformer is connected to two series resistance shown in shown in figure. {{IMG1}} The output voltage (V_0) is: {{IMG2}}
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QUESTION #50 Power Factor in AC Circuits
A series L,R circuit connected with an ac source E = (25sin 1000t)mathrmV has a power factor of frac1sqrt2. If the source of emf is changed to E = (20sin 2000t)mathrmV, the new power factor of the circuit will be:
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