Q.33 What is an electromagnet? How electromagnets are made?
Q.34 If three capacitor 5 uF, 10 uF and 15 uF are connected in series. What will be the
Q.35 What is KWh? Establish relation between KWh and Joules.
Q.36 Describe right hand thumb rule. What will be direction of magnetic field if current is
overall capacitance of this series combination?
flowing vertically upward in a straight current carrying conductor?
Answers
Answer:
Answer of 33 - An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the centre of the coil.
Answer:
Q.33 What is an electromagnet? How electromagnets are made?
Ans: An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the centre of the coil.
When an electric current flows in a wire, it creates a magnetic field around the wire. This effect can be used to make an electromagnet . A simple electromagnet comprises a length of wire turned into a coil and connected to a battery or power supply. ... wrapping the coil around a piece of iron (such as an iron nail)
Q.35 What is KWh? Establish relation between KWh and Joules.
Ans: One kilowatt-hour is equivalent to the energy of 1,000 joules used for 3,600 seconds or 3.6 million Joules. In equation form: 1 kWh = 3.6 million J.
Q.36 Describe right hand thumb rule. What will be direction of magnetic field
Ans: We can remember this diagram using the right-hand rule. If you point your pointer finger in the direction the positive charge is moving, and then your middle finger in the direction of the magnetic field, your thumb points in the direction of the magnetic force pushing on the moving charge.
Explanation:
Q.34 If three capacitor 5 uF, 10 uF and 15 uF are connected in series. What will be the
Ans:
