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What causes the loops of wire and the pointer to move in a galvanometer?
The electromagnet's coil is attached to a pointer. When a current is in the electromagnet's coil, a magnetic field is produced. This field interacts with the permanent magnet's field, causing the loops of wire and pointer to rotate.
What is the actual error percentage in calibration of voltmeter?
An ordinary voltmeter would be expected to have an accuracy of about 1%.Even then, if it were an analog meter, one should check the balance of the pointer; along its pointer axis, and perpendicular to that. Indeed, this is the reason that an analog meter should be used with the scale plate horizontal if possible.To check the balance of the needle assembly, hold the meter up so that its scale plate is vertical. Then check the balance of the pointer as above, in both vertical and horizontal attitudes.To do better than this, with either an analog or a digital instrument, you will need access to a set of standardized voltages, and some more elaborate equipment.
Energy is done when a force causes an object to move?
Work is done when force causes an object to move and capacity of doing work is called energy So, energy is required and consumed when force causes an object to move
What causes an error in reading an ammeter?
Main error is not using a mirror scale properly so the needle can appear to be in a different place. The idea is that if you look directly at the needle from the front, you will not see a reflection in the mirror as the reflection would be directly behind it. If you CAN see a reflection to the left or right, you are going to misread. Some meters have a twisted pointer instead of a mirror scale - look on properly the pointer is very thin, read from the side it is thick. Other errors might be using a "scaled" meter without the correct current transformer (used on very high current readings), a damaged (usually through overload) spring, coil, not setting the meter to zero, using a DC only meter to read AC etc etc
A body starts slipping down an incline and moves a half meter in a half second. How long will it take to move the next half meter?
It will take a half second.
What is theory of electric meter?
The mechanical pointer meter operates off a slug and a coil to move the pointer
What is the mouse pointer?
the move pointer
What causes the loops of wire and the pointer to move in a galvanometer?
The electromagnet's coil is attached to a pointer. When a current is in the electromagnet's coil, a magnetic field is produced. This field interacts with the permanent magnet's field, causing the loops of wire and pointer to rotate.
How does the pointer move when the balance nut is tightened?
The pointer is lose.
The pointer of an analog meter is connected to?
Fixed magnet
What does electromagnetism have to do with galvanometer?
A galvanometer is a simple meter that detects the flow of current. A current flowing in a wire causes magnetism around the wire. This is called electromagnetism. Like poles of a magnet repel and opposites attract. The Galvanometer uses these principles in order to move a pointer across a scale.
The move pointer is displayed as an?
^ <> v
What to do when in excel worksheet pointer not work as copy pointer or as move pointer?
All you need to do is just press the arrow keys and the cursor will move in the direction of the arrow that has been pressed. If you press and hold the one of the Shift keys at the same time, then it will also select cells as the cursor moves.
The mouse pointer turns to a what whenever you move it outside the worksheet?
the mouse pointer turn to arrow
What is the different mouse pointers?
the move pointer
The move pointer is displayed as a?
4 way arrow
33 What does the error 'Null Pointer Assignment' mean and what causes this error?
This error appears due to incorrect assignment to pointer and pointer tries to access illegal memory...
