Electric Circuits and Measurements

What is the effect on capacitance when the distance between the plates is increased?

It decreases

What is the symbol for capacitance?

C

What is the effect on capacitance when the area of cross section of the plates is decreased?

It decreases

How are capacitors connected in series?

In series Signup and view all the answers

What is the total charge in the given circuit: CE = C1 + C2 + C3 = 0.1 + 0.2 + 0.3 = 0.6μF?

7.2μC Signup and view all the answers

What is the energy transferred to the lamp in the given example: A 6V battery supplies a current of 0.5 A to a lamp for 3 minutes?

54J Signup and view all the answers

What is the charged particle that flows in a circuit?

Electrons Signup and view all the answers

What is the SI unit of Potential Difference?

Volts Signup and view all the answers

What is the relation between EMF and terminal potential difference when no current flows?

EMF is equal to terminal potential difference Signup and view all the answers

What is the main function of resistance in an electrical circuit?

To control the electron flow in a circuit Signup and view all the answers

What is the unit of resistance?

Ohms Signup and view all the answers

What is the relation between Charge, Current, and time?

Charge is directly proportional to Current and time Signup and view all the answers

What is produced around a conducting wire when a current flows through it?

A magnetic field Signup and view all the answers

What happens to the strength of a magnetic field when the current through the wire is increased?

It increases Signup and view all the answers

What is the effect of increasing the distance from the wire on the strength of the magnetic field?

It decreases Signup and view all the answers

What is a solenoid?

A coil of wire used to produce a magnetic field Signup and view all the answers

What is the purpose of adding an iron core to a solenoid?

To increase the strength of the magnetic field Signup and view all the answers

What is the name of the rule used to determine the direction of the force in a motor?

Fleming's Left-Hand Rule Signup and view all the answers

What is the direction of the magnetic field when looking at the wire next to the North seeking pole of the magnet?

Pointing to the right Signup and view all the answers

What is the unit of Magnetic Flux Density?

Teslas Signup and view all the answers

What is the formula for the force on a conductor?

F = BIl Signup and view all the answers

What is the pH of a neutral solution?

pH 7 Signup and view all the answers

What is the formula for the torque produced by the armature of a simple DC motor?

T = nBIld Signup and view all the answers

What is the purpose of the pH scale?

To classify a solution as acidic, alkaline, or neutral Signup and view all the answers

What is the unit of frequency?

Hertz Signup and view all the answers

What is the formula to calculate the period of a wave?

Period = 1/frequency Signup and view all the answers

What is the speed of a wave with a wavelength of 3m and a frequency of 2 Hz?

6 m/s Signup and view all the answers

Why do sound waves travel faster through solids than through gases?

Because solids are more densely packed than gases Signup and view all the answers

What type of wave causes the medium to move perpendicular to the direction of the wave?

Transverse wave Signup and view all the answers

What is the distance traveled by a given point of a wave during a given time interval?

Velocity Signup and view all the answers