List of top Physics Questions asked in GUJCET

A 12W resistor is connected to a battery of 24V. What is the current through the resistor?
What is the most commonly used energy source in everyday life?
If the speed of light in a medium is \( 200 \times 10^8 \, \text{cm/s} \), calculate the refractive index for this medium given that \( c = 3 \times 10^{10} \, \text{m/s} \).
A long solenoid with a length of 0.15 m is connected to a current of 30 A. What will be the magnetic flux produced by the solenoid?
In a magnetic field, if a current of 0.3 A flows for 0.75 seconds, and the magnetic field strength is 0.2 T, what will be the force experienced by the current-carrying conductor?
In an LCR circuit, the current is calculated to be 141.4% of the initial value. What is the resonance condition for this circuit?
The figure shows the arrangement of a magnetic dipole. What is the behavior of the magnetic field?
In an AC circuit, the EMF is 6 V. What will be the value of the current?
If a coil is connected to an AC circuit, what will be the phase difference between the voltage and current in the circuit?
In a diagram where the electric field is plotted against distance, what will the graph of the magnetic field \( B \) with respect to the distance \( r \) look like?
A long solenoid has a magnetic field of strength \( 3 \times 10^{-7} \, \text{T} \) and a length of 1 m. The current flowing through it is 1 A. What is the magnetic dipole moment?
What are the dimensions of the thermal conductivity coefficient \( k \) (SI units)?
In the circuit shown, what is the voltage at point \( P \)?
For a series combination of resistors, what is the value of \( n \) for the formula \( \frac{n}{n+1} + \frac{1}{R} = \frac{1}{R_{eq}} \)?
In a circuit with resistors and a voltage of \( V \), if a new resistor is added to the series combination, what will be the new potential?
In a resistor network with resistance \( R \), what is the ratio of the total resistance when the resistances are combined in series and parallel?
Two point charges are placed on either side of the system, and the electric field is applied with a voltage of 2V. If the electric potential is the same, what will be the interaction between the two charges \( P \) and \( Q \)?
In the circuit shown, the total resistance of the series combination is 0.5Ω. If a potential difference of 15V is applied, calculate the total potential across the combination of the series connected resistors.
In a spherical shell, the potential at a point \( 2m \) from the center of the shell is equal to the potential due to a point charge \( q \) placed at the center of the shell. The potential at this point is:
For a resistor \( R \), the potential across it is given by \( 1.6 \times 10^{-6} \, \text{C} \) of charge and a voltage across it. The electrical potential due to this charge will depend on:
In the diagram of two point charges \( +q \) and \( -q \), the potential at point A is given by the formula. Calculate the potential at point A if the distance between the charges is \( 2l \).
If the electric field between the plates of a capacitor with charge \( 2q \) is \( E \), then what will the electric field be when the capacitor is connected to a battery with a voltage \( E \) across the plates?
A resistor of value 200Ω and capacitance 15μF are connected in series. What is the total time constant of the circuit?
What is the current flowing in the circuit shown? (The resistor is 100$Ω$, and the voltage is +6V and +5V).
In a p-n junction diode, when it is forward biased, what happens?