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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.
Describes what happens when hold a compass close to wire carrying current?
When a compass is held close to a wire carrying current, the magnetic field created by the current induces a magnetic field around the wire. The compass aligns with this magnetic field and its needle will deflect in a direction perpendicular to the wire. This can be used to determine the direction of the current flow in the wire.
What is the cylindrical coil of current carrying wire?
A cylindrical coil of current-carrying wire is a type of solenoid - a coil of wire wound in a helical shape around a cylinder. When an electric current flows through the wire, it generates a magnetic field along the axis of the cylinder. This type of coil is commonly used in electromagnets, transformers, and inductors.
What is a current-carrying coil of wires with many loops?
solenoid
Does coil of wire carrying a current have a magnetic field?
Yes, a coil of wire carrying an electric current generates a magnetic field around it. The strength and direction of the magnetic field depend on factors such as the number of turns in the coil, the amount of current flowing through it, and the shape of the coil. This principle is used in devices such as electromagnets and electric motors.
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.
Describes what happens when hold a compass close to wire carrying current?
When a compass is held close to a wire carrying current, the magnetic field created by the current induces a magnetic field around the wire. The compass aligns with this magnetic field and its needle will deflect in a direction perpendicular to the wire. This can be used to determine the direction of the current flow in the wire.
What is the cylindrical coil of current carrying wire?
A cylindrical coil of current-carrying wire is a type of solenoid - a coil of wire wound in a helical shape around a cylinder. When an electric current flows through the wire, it generates a magnetic field along the axis of the cylinder. This type of coil is commonly used in electromagnets, transformers, and inductors.
What is a current-carrying coil of wires with many loops?
solenoid
Does coil of wire carrying a current have a magnetic field?
Yes, a coil of wire carrying an electric current generates a magnetic field around it. The strength and direction of the magnetic field depend on factors such as the number of turns in the coil, the amount of current flowing through it, and the shape of the coil. This principle is used in devices such as electromagnets and electric motors.
Which effect of current can be utilized in detecting current-carrying wire concealed in a wall?
The magnetic effect of current can be utilized by using a magnetic compass to detect a current-carrying wire hidden in a wall. When a current flows through a wire, it generates a magnetic field around the wire which can deflect the needle of a compass nearby. This method is commonly used by electricians to trace wiring behind walls.
What is used to turn the pointer of a galvenometer?
The pointer on a galvenometer moves due to magnetic force between the current carrying coil in the pointer assembly and the permanent magnet surrounding that coil.
What happens when a compass is placed near a current-carrying wire?
That depends. If we assume that current is flowing though the wire then there is an induced magnetic field equal to B=u_o*I/(2R*pi). For a visual refer to http://hyperphysics.phy-astr.gsu.edu/HBASE/magnetic/magcur.html#c2
What rule is used to find out polarity of a current carrying solenoid?
To determine the polarity of a current-carrying solenoid, use the right-hand grip rule. Point your right thumb in the direction of the conventional current flow in the solenoid coil (from positive to negative) and wrap your fingers around the coil in the direction of the current. Your outstretched fingers will then indicate the polarity of the solenoid: the tip of your fingers shows the north pole, while your palm indicates the south pole.
Why pmmc used for DC only?
Because in the coil DC current follow easly and pmmc meter is making with coil and AC current is not follow in coil so we used the pmmc only fpr DC current.
Steps in making a galvanometer?
Wind a coil of wire around a bobbin to create the coil, which will serve as the moving element of the galvanometer. Attach a pointer or index needle to the coil to indicate the deflection caused by the current passing through the coil. Place the coil and pointer assembly within a magnetic field produced by a permanent magnet to allow for the deflection of the pointer in response to current flow. Connect the coil to a calibrated scale to measure the amount of current based on the deflection of the pointer.
What instrument measures the direction of current?
A compass can be used to measure the direction of current flow in a circuit by aligning the compass needle with the magnetic field created by the current.
