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Questions and Answers
What happens to the potential V of a capacitor when connected to a battery?
What happens to the potential V of a capacitor when connected to a battery?
- It becomes zero
- It remains the same (correct)
- It decreases
- It increases
How does the electric field E due to a plane sheet of charge change when the charge density σ decreases?
How does the electric field E due to a plane sheet of charge change when the charge density σ decreases?
- E remains constant
- E increases
- E decreases (correct)
- E becomes zero
What happens to the energy stored in a capacitor when the charge Q decreases but the potential V remains constant?
What happens to the energy stored in a capacitor when the charge Q decreases but the potential V remains constant?
- Energy becomes zero
- Energy stored decreases (correct)
- Energy stored increases
- Energy stored remains constant
In an electric circuit, what happens to the current distribution if I1 = 4I/7, I2 = I/7, and I3 = I/7?
In an electric circuit, what happens to the current distribution if I1 = 4I/7, I2 = I/7, and I3 = I/7?
What is the relationship between charge Q and electric field E in a capacitor?
What is the relationship between charge Q and electric field E in a capacitor?
How does the energy stored in a capacitor change with both Q and V being proportional to it?
How does the energy stored in a capacitor change with both Q and V being proportional to it?
What is the correct ratio of e1 to e2 in the given equation e1/e2 = L1/L2 = 3?
What is the correct ratio of e1 to e2 in the given equation e1/e2 = L1/L2 = 3?
In circuit (ii), what happens to the glow of the bulb if ω is increased?
In circuit (ii), what happens to the glow of the bulb if ω is increased?
What effect does lowering ω have on the current flowing through the capacitor arm in circuit (i)?
What effect does lowering ω have on the current flowing through the capacitor arm in circuit (i)?
What happens to the energy stored in a coil when U1/U2 = 1/3?
What happens to the energy stored in a coil when U1/U2 = 1/3?
If Xc tends to infinity in circuit (i), what happens to Irms?
If Xc tends to infinity in circuit (i), what happens to Irms?
What conclusion can be drawn when ω approaches 0 in both circuits?
What conclusion can be drawn when ω approaches 0 in both circuits?
What is the potential drop V1 across the first cell in the circuit?
What is the potential drop V1 across the first cell in the circuit?
If R = r1 - r2, what does this imply regarding the potential drop across the cell E1 with internal resistance r1?
If R = r1 - r2, what does this imply regarding the potential drop across the cell E1 with internal resistance r1?
What happens to the voltmeter reading when connected across a 3000 ohm resistor, given that the voltmeter has a resistance of 6000 ohms?
What happens to the voltmeter reading when connected across a 3000 ohm resistor, given that the voltmeter has a resistance of 6000 ohms?
How does the power across R2 change when its value is heated to 4 times its original value?
How does the power across R2 change when its value is heated to 4 times its original value?
What is the relationship between Power1 and Power2 in the circuit when the switch is closed?
What is the relationship between Power1 and Power2 in the circuit when the switch is closed?
What is the percentage difference in voltage read by the voltmeter compared to the actual voltage across a 3000 ohm resistor?
What is the percentage difference in voltage read by the voltmeter compared to the actual voltage across a 3000 ohm resistor?
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