Dealing with inductor Java Lab org 1 What

Dealing with inductor 자바실험실 Java. Lab. org 1

What the inductor does Magnetic field’s change Electric energy 1. Can make the electric energy. 2. Can convert the voltage. 3. Can send radio waves. 4. Can capture radio waves. 2

What means the number on the top of the inductor? 331 3

331 • 4

Breadboard … 4 3 2 1 5

3 1 1 2 3 3 4 5 Activity 1. Electromagnet 7 8 9 10 11 12 6

In “Activity 1”, what will be ( A ), ( B )? ( A ) ( B ) 7

In “Activity 1”, what will be ( A ), ( B )? Electric current Unchanged Magnetic field 8

3 1 1 2 3 3 4 5 Activity 2 7 Mutual inductance 9 5 8 10 11 12 9

When you press a button, 3 1 1 2 3 3 4 5 Activity 2 7 Mutual inductance 9 5 8 10 11 12 10

In “Activity 2”, what will be ( C ), ( D)? ( C ) ( D ) Light 11

In “Activity 2”, what will be ( C ), ( D)? Change of magnetic field Electric current Light 12

What we need to know. To light the LED, it requires higher voltage(> 3 V) We can get higher voltage by using this inductor. 13

Activity 3. Self inductance 14

When you connect the circuit, the inductor produces unchanged magnetic field. 15

When you cut the circuit, The inductor makes voltage in order to against the magnetic change 16

In “Activity 3”, what will be ( E ), ( F)? ( E ) ( F ) Light 17

Bonus Activity 3 2 3 3 5 5 6 C 1815 33 1 Wireless power transmission 1 7 8 9 10 11 12 * The two inductors are opposite in direction 18

Monitoring inductor (makes a frequency)↓ 33 Main inductor → 1 3 3 1 1 7 2 3 3 5 5 Main current 8 ← Transistor(switching the main current) 9 10 11 12 19

Choose the answer from below. Electric current Unchanged Magnetic field Change of magnetic field 20