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- A. General Materials & Mathematics
- B. Statics
- C. Kinematics & Dynamics
- D. Rotational Mechanics
- E. Gravitation & Astronomy
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- H. Sound
- I. Thermodynamics
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K3-01. Induction In A Transformer
Purpose
To demonstrate that a change in the primary current induces a secondary voltage.
Equipment
Demountable transformer core with coils of 46 turns and 500 turns, 1.5 volt battery, variable resistor, and lecture-demonstration galvenometer.
Setup Time
5 minutes.
Images
Description
The 46-turn primary coil of a transformer is connected through a variable resistor to a 1.5 volt battery, and a large galvenometer is connected directly across the 500-turn secondary, as shown in the circuit diagram below. The primary current in this simple transformer is changed by sliding the variable resistor contact, inducing a secondary potential which is indicated by the galvenometer. Motion of the resistor slider and current in the galvenometer are correlated.
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See pagesk1. forces on moving charges
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See pagesk2. electromagnetic induction
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See pagesk3. transformers
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See pagesk4. motors & generators
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See pagesk5. electrical properties of matter
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See pagesk6. electric circuits & instruments
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See pagesk7. rlc circuits
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See pagesk8. electromagnetic waves
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See pagesk1. forces on moving charges
-
See pagesk2. electromagnetic induction
-
See pagesk3. transformers
-
See pagesk4. motors & generators
-
See pagesk5. electrical properties of matter
-
See pagesk6. electric circuits & instruments
-
See pagesk7. rlc circuits
-
See pagesk8. electromagnetic waves