Why is magnetism strongest at the poles?

Why is magnetism strongest at the poles?

For a magnet, the flux lines repel each other so the field will be weaker at the sides. But they are concentrated at the poles, where they originate, so the field is stronger.

Where is the weakest part of a magnetic field?

The magnetic field is weakest at the center and strongest between the two poles just outside the bar magnet. The magnetic field lines are densest at the center and least dense between the two poles just outside the bar magnet.

What happens to the electric field in the capacitor as the charge Q stored in it increases?

Question: QUESTION 6 What Happens To The Electric Field In The Capacitor As The Charge, Q, Stored In It Increases? The Field Increases As Q.

Why DC is not used in capacitor?

We know that there is no frequency i.e. 0Hz frequency in DC supply. If we put frequency “f = 0″ in the inductive reactance (which is AC resistance in capacitive circuit) formula. If we put XC as infinity, the value of current would be zero. That is the exact reason why a capacitor block DC.

Can we charge capacitor with DC?

Capacitor performs three tasks in dc circuits i.e. taking charge, holding charge and delivering charge at certain time. When capacitor is connected to dc voltage source, capacitor starts the process of acquiring a charge. This will built up voltage across capacitor.

Can a capacitor store voltage?

Taken together, the capacitance and the amount of charge to store determines the voltage. A 1 Farad capacitor charged to 1 volt will have stored 1 coulomb as would a 0.5 Farad capacitor charged to 2 volts. The difference occurs when you want to transfer this stored charge to a circuit.

Why use a capacitor in a circuit?

Capacitors are widely used in electronic circuits for blocking direct current while allowing alternating current to pass. In analog filter networks, they smooth the output of power supplies. In electric power transmission systems they stabilize voltage and power flow.