JEE Physics - MCQ Practice Questions
Practice free JEE Physics multiple-choice questions with detailed answers and explanations. Perfect for competitive exam preparation.
900 questions | 100% Free
A nichrome wire and a copper wire of same length and area are connected in series. Which experiences greater heat dissipation?
In a meter bridge experiment, the null point is obtained at 40 cm from the left end. If the left resistance is 8Ω, what is the right resistance?
A battery of EMF 10V supplies current to a circuit. If the voltage across external resistance is 9V, what is the internal resistance if external resistance is 90Ω?
In a circuit with capacitors, which quantity is continuous across the capacitor?
Which of the following shows non-ohmic behavior?
In Joule heating, if voltage is doubled and resistance is halved, the power dissipated becomes:
A wire of length L and cross-sectional area A has resistance R. If the wire is stretched to 1.5 times its original length without change in volume, what will be its new resistance?
A heating element rated 1000W, 220V is connected to a 110V supply. The heat produced becomes: