Electronics Handbook/Components/Resistors
Contents
Resistor[edit]
Resistor is an electronic component made from straight wire conductor of the dimension

 Length l,
 Area A, that has a
 Conductivity
Resistor has Electronic Symbol shown below
Characteristics[edit]
Resistance[edit]
The characteristic of the Resistor is defined by its Resistance R which measures the resistance of the Resistor to the current flow
DC Characteristics[edit]
When connect Resistor with a DC voltage source in a closed loop circuit
Voltage
Current
Resistance
Energy Supplied
Energy Dissipated as heat or Energy Loss as Heat into the surrounding
Energy Transfer
The Efficiency of Energy transfer
AC Characteristics[edit]
When connect Resistor with a AC voltage sourse in a closed loop circuit
Voltage
Current
Power
Impedance
Resistor Types[edit]
Resistor are availble in two main types
Fixed Resistor[edit]
Resistor of a fixed value
Variable Resistor[edit]
Resistor of a variable value
Colored Band Coded Value[edit]

Đen (Black) Nâu(Brown) Đỏ (Red) Cam (Orange) Vàng (Yellow) Xanh Lá Cây (Green) Xanh Da trời(Blue) (Tím (Violet) Xám (Grey) Trắng (White) 0 1 2 3 4 5 6 7 8 9
Resistor Configurations[edit]
Series Configuration[edit]
Two or more resistor can be connected in series to increase the total resistance . The Total Resistance is equal to the sum of all the resistor's resistance . The total resistance In Series connected circuit Current and voltage will be reduced
When connect two reistors of the same resistance the total resistance is doubled
 R + R = 2R
Parallel Configuration[edit]
Two or more resistor can be connected in parallel to decrease the total resistance .
2 Port Network Configurations[edit]
 Mạch Chia Điện
Mạch Điện của hai điện trở mắc nối theo hình trên
 Mạch T
Nếu điện thế trên R_{2} bằng V
 Mạch π
Mạch điện với 3 Điện Trở bắt theo dạng hình π . Với R_{1} tại cổng nhập, Với R_{3} tại cổng xuất
 I_{R1} = I_{R2} + I_{R3}
 Mạch Nối Tiếp Song Song
 DeltaStar Transformation
 <mathrm{b}R_\mathrm{c}}{R_\mathrm{a} + R_\mathrm{b} + R_\mathrm{c}} </math>
 Y  Δ Hoán Chuyển