Contents
Does IC need resistor?
The answer is NO. No resistors are required on the inputs.
Which type of resistor is commonly used in automotive circuits?
24 Cards in this Set
| The electrical system of a modern automobile runs at ______ volts when the engine is running | 14.0 |
|---|---|
| What is the name for the formula E=I x R ? | Ampere’s Law |
| What type of resistor is commonly used in automotive circuits? | Fixed value, Stepped, and Variable |
What is normally the role of a resistor in an LED circuit?
The main function of resistors in a circuit is to control the flow of current to other components. Take an LED (light) for example. If too much current flows through an LED it is destroyed. So a resistor is used to limit the current.
How does current limiting resistors work between ICs?
If the connection between the two during a logic HIGH only consumes 500uA without a resistor, with 5V, then the resistance can be estimated as R = V/I , R = 10K Ohms. Adding more resistance will just lower the current, and “add” to the total loop resistance to ground.
Although different resistors with different resistance gives varied voltages when similar ampere of current flows through it. To simply we can say that Voltage across a resistor is proportional to the current flowing through it.
Which is the best resistor for high frequency?
Factors such as resistor base material and the ratio of length to cross-sectional area determine the extent to which the parasitic L and C affect the constancy of a resistor’s effective dc resistance at high frequencies. Film type resistors generally have excellent high-frequency response; the best maintain their accuracy to about 100 MHz.
What kind of material is a resistor made out of?
To understand resistor consider it as a simple wire which rather than allowing free flow of electrons through it resistors offer resistance and try to slow down the flow of electrons AKA current. Resistors are commonly made out of materials like Carbon, Metal or metal oxide film.