CBSE Class 12-science Answered
Please give me the list of all the different types of Screw rules, left and right hand rules, and where to use them.
Asked by sunil2791 | 26 Feb, 2018, 11:11: AM
Expert Answer
(1) right hand screw rule
when a steady current is passed through a conducting wire, then there is magnetic field surrounding the conductor.
Right hand rule is to get the magnetic field direction of current carrying conductor. As shown in figure if we hold the current carrying conductor and if our thumb shows the direction of current, then magnetic field direction is same as the direction of curling our fingers.
(2) Flemings left hand rule
When a current carrying conductor is placed in a magnetic field such that the direction of magnetic field and the direction of current are perpendicular, then the conductor experience a force. Flemings left hand rule is used to get the direction of force
Let us stretch central finger, fore finget and thumb of our left hand in mutually perpendicular direction as shown in figure. Let central finger point the direction of current and fore finger point the direction of field, then the direction of force is same as the direction of thumb.
to remember this rule:-
C- Current - Central finger
F- Fore finger - Field
M - Thumb - Motion
(3) Flemings Right hand rule
When a conductor moves in a magnetic field, current is induced in condutor. This is known as electromagnetic induction. To understnd the sign of induce current Flemings right hand rule is used.
As shown in figure Let us stretch our right hand centeral finger, fore finger and thumb in mutually perpendicular direction. Let Thumb shows the direction of motion of conductor, fore finger shows the direction of magentic field, then thumb shows the direction of induced current.
To remember this rule:-
C- Current - Central finger
F- Fore finger - Field
M - Thumb - Motion
Answered by Thiyagarajan K | 26 Feb, 2018, 11:52: AM
Concept Videos
-
Electric Charge - Part 1
This video describes the concept of charge, conductors and insulators, and ... -
Gold Leaf Electroscope - Part 1
This video explains the basic properties of electric charges. -
Coulom's Law of Electric Force - Part 1 ...
This video describes Coulomb's law to calculate the force between any two p... -
All about electric fields
Define electric field in terms of Coulomb's force. Apply superposition prin... -
Electric Field Lines
This video explains the representation of electric field due to a single ch...
CBSE 12-science - Physics
Asked by artabandhusahu85 | 24 Apr, 2024, 12:07: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by niharvijayvargiya5 | 23 Apr, 2024, 06:40: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by kulhariabhijeet | 21 Apr, 2024, 02:39: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by mohapatraswetalina88 | 21 Apr, 2024, 12:18: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by aishaisha091098 | 19 Apr, 2024, 04:54: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by dasrituparna1999 | 13 Apr, 2024, 06:56: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by dasrituparna1999 | 12 Apr, 2024, 09:26: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by mishrigupta19319 | 08 Apr, 2024, 06:28: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by madhav9119887644 | 07 Apr, 2024, 08:10: PM
ANSWERED BY EXPERT
