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What else can I help you with?
Can a compass be used to determine the exact direction that charge flows in a circuit?
In a DC circuit yes. The compass detects the magnetic field around the wire. Reverse the DC current and the compass will swing 180 degrees from the position is was in.
What is the principle of compass surveying?
The prismatic compass is a type of compass use for survering a land.
What professionals use a compass?
A compass is used by various people in different fields to know their location and destination. The most common professions that use a compass are pilots, ship captains and also geographers.
Why should you handle a compass carefully?
Since the needle in a compass is magnetized by induction it loses its magnetism easily by rough contact or heat.
What does technology and compass have in common?
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How do you make an improvised voltmeter?
You need to build a galvanometer first; this is a sensitive current meter. Simple designs involve wrapping loops of wire around a compass. Then select a relatively high resistance and make a series circuit in this order: 1) voltage source 2) resistor 3) galvanometer The small current flowing through the circuit (due to the high resistance) will be noticeable in the deflection of the compass needle. The resistor should be chosen to limit the current in the circuit so that the deflection is noticeably different for different applied voltages. If the resistance is too small, all voltages will cause a full deflection of the compass needle. If the resistance is too large, there will not be any noticeable deflection for your choice of voltages. Higher voltages should cause greater deflections. http://madlabs.info/galvanometer.shtml hope that helps, M
When the free ends of a tester are dipped into a solution the magnetic needle of a compass shows deflection. Can you explain the reason?
The deflection of the magnetic needle in the compass is due to the flow of electric current when the free ends of the tester, such as a galvanometer, are dipped into the solution. The electric current creates a magnetic field around the tester, which interacts with the Earth's magnetic field, causing the needle in the compass to show deflection.
What is the effect on the direction of the compass needle when you close the circuit?
When you close the circuit, a magnetic field is produced which can deflect the compass needle. The direction of the compass needle will align with the magnetic field produced by the current flowing through the circuit.
Why does a compass needle placed near a current carrying wire show deflection?
A compass needle placed near a current-carrying wire shows deflection because the moving charges in the wire create a magnetic field around the wire. This magnetic field interacts with the magnetic field of the compass needle, causing it to align with the direction of the current flow in the wire.
Can a compass be used to determine the exact direction that charge flows in a circuit?
In a DC circuit yes. The compass detects the magnetic field around the wire. Reverse the DC current and the compass will swing 180 degrees from the position is was in.
Why does a compass move when it gets near an electromagnet?
When a compass gets near an electromagnet, the magnetic field produced by the electromagnet interferes with the Earth's magnetic field, causing the compass needle to align with the electromagnet's field instead. This phenomenon is known as magnetic deflection.
What is the circuit's total resistance?
You take the wire(s) that are in the circuit and place it on on a compass. Hold the compass still and the needle in the compass will move. However far that the needle is turned will detrmine how much resistance is in the circuit. (You know you have done this correctly if the needle in the compass spins counter clockwise.) Hope this helps you out :)
Explain the effect on the direction of the compass needle when you close the circuit?
When you close the circuit, the flow of current generates a magnetic field around the wire, which can influence the direction of the compass needle. The compass needle will align itself with the magnetic field produced by the current flowing through the circuit, causing it to deflect from its original position.
What will be deflection in compass needle of a magnet when a current carrying wire is placed over it?
The compass needle will turn until it's perpendicular to the wire, provided the current in the wire is enough to generate a magnetic field around the wire that's strong enough to swamp out the effects of the Earth's magnetic field. (That doesn't take much current.)
What is an electrical current that produces a magnetic field?
The deflection of a magnetic compass in the presence of an electric current, is evidence that an electric current produces a magnetic field.
Does a compass turn near a closed circuit wire?
It will if there is current flow
Describe what happens when you hold a compass close to a wire carrying a current?
When a compass is held close to a wire carrying a current, the magnetic field produced by the current will deflect the compass needle. This happens because a magnetic field is generated around the wire due to the flow of current, and the compass needle aligns itself with this magnetic field. The deflection of the compass needle can be used to determine the direction of the current in the wire.
