What is the primary purpose of a 'studio monitor' in audio production?

• To connect different audio equipment

• To listen to music for leisure

• To check the sound quality of audio mixes

• To record audio in a studio

Which device is essential for connecting studio monitors, microphones, and different instruments?

• cables

• audio interface

• microphone

What type of device uses electricity and magnetism to display moving images and produce sound?

• radio

• toaster
• refrigerator
• television

What do we call the lines aligned along the imaginary lines around a magnet?

• electric field lines

• magnetic field lines

• gravity lines

• friction lines

Who first proposed the concept of electromagnetic induction?

• Isaac Newton

• Marie Curie

• Albert Einstein

• Michael Faraday

Answer explanation

The concept of electromagnetic induction was first proposed by Michael Faraday.

Which device converts electrical energy into mechanical energy through the interaction of magnetic fields?

• motor

• transformer

• generator

Which of the following materials can be attracted by a magnet?

• iron filings

• steel nails

• aluminum foil

• wooden stick

What is the direction of the movement of electric charges in a negative charge?

• From positive to negative
• From negative to positive
• They do not move
• In a random direction

Which of the following situations will result in the presence of an electric field?

• sparks jumping

• rotating coil of wire

• at rest

• in all directions

What polarity is exhibited to the tip of a hairpin hanged and directly attached to the south pole of a permanent magnet?

• North polarity

• East polarity

• West polarity

• South polarity