What is the current in the 8 ohm resistor?

What is the current in the 8 ohm resistor? 

Current flowing through 8 ohm resistor is 1 Ampere.

( the point which is connecting all resistance).

What is a 10 ohm resistor used for? 

10 Ohm Through Hole Resistor

A passive device that resists the flow of electricity. Description: This resistor will provide 10 Ohms of resistance wherever it is placed and will handle 1/4 watts. Use these low value resistors for voltage dividers and where you need to keep the current flow as high as possible.

What happens if resistor is too high? 

For a simple LED circuit there are no bad consequences of using a resistor of higher power. On the other hand, some type of high speed communication system may not like the increased capacitance to ground of a large resistor or, the increased series inductance.

How do I know what resistor to use? 

Determine the resistance and the watts to be dissipated by the resistor. Determine the proper “Watt Size” (physical size) as controlled by watts, volts, permissible temperatures, mounting conditions and circuit conditions. Choose the most suitable kind of unit, including type, terminals and mounting.

What is the current in the 8 ohm resistor? – Related Questions

What resistor do I need to reduce voltage?

To reduce voltage in half, we simply form a voltage divider circuit between 2 resistors of equal value (for example, 2 10KΩ) resistors. To divide voltage in half, all you must do is place any 2 resistors of equal value in series and then place a jumper wire in between the resistors.

What resistor do I need to drop 12v to 5v?

12v to 5v converter using a voltage divider:

Components required: One 12v battery, 1.8k resistor, 1.3k resistor, connecting wires.

Does a resistor reduce voltage or current?

A resistor has the ability to reduce voltage and current when used in a circuit. The main function of a resistor is to limit current flow. Ohm’s law tells us that an increase in a resistors value will see a decrease in current. To reduce voltage, resistors are set up in a configuration known as ‘voltage divider’.

What resistor do I need for LED 12V?

We’ll use the following formula to determine the resistor value: Resistor = (Battery Voltage – LED voltage) / desired LED current. For a typical white LED that requires 10mA, powered by 12V the values are: (12-3.4)/. 010=860 ohms.

What resistor do I need to drop 12V to 6v?

If you have a device lacks this type of internal voltage protection, you can supply it by constructing an external resistive voltage divider circuit. It’s possible to step 12 volts down to 6 volts by incorporating a pair of 10,000-ohm resistors into the circuit.

What happens if you use a 12 volt battery on a 6 volt system?

If you put a 12v battery in a 6v system, and you don’t change the light bulbs, they will all burn out. And the battery will not get charged by the generator, because it only puts out 6 volts. And the radio will not work right, and the gauges might get damaged. Tractor supply places sell 6v batteries.

How do you convert a resistor from 12v to 3V?

Our task is to stepdown 12v into 3v. so, we are going to use 1k ohm resistor and 330-ohm resistor. Connect one end of 1K ohm resistor to 12v supply and second to any other hole of breadboard.

How do you reduce 12v dc to 5v DC?

Connect 12 v to pin 1 ,pin 2 is the ground and pin3 gives 5v. Don’t want to use IC or not getting it,use a voltage divider using 2 resistors and you are done with it. Connect 12 v across the series combination of 4.7k ohm and 6.8k ohm(readily available standard ) resistor and take the output across 4.7k ohm.

How does a diode reduce voltage?

The circuit below shows a number of digital multimeters, each connected after a diode. After each diode, the voltage can be seen to drop by 0.6 volts. In this way, diodes can be used to reduce voltage, in a circuit. Zener diodes allow electricity to flow through them, in the same way as normal diodes.

How do you make a step up converter?

How do you convert a transistor 12V to 5V?

Steps to Connect:
  1. Connect 3.3v GPIO pin to 1k Resistor.
  2. Other end of 1k Resistor connect to 2N3904 Transistor(Base)
  3. 2N3904 Transistor (Emitter) is connected to Ground.
  4. 2N3904 Transistor (Collector) connect to one end of Multimeter.
  5. 5v +ve supply connect to other end of Multimeter.
  6. 5v -ve supply connect to ground.

Is USB a 12V or 5v?

5v
Since USB connections put out 5v DC power, devices that use this type of adapter are all designed to run on that voltage input.

How do I step 12V down to 9V?

To reduce a 12V circuit to 9V, place two resistors in series within the circuit. Find the difference between the two voltages (12V – 9V = 3V) to determine the total amount of resistance needed.

What is BC547 transistor?

BC547 is a Bipolar Junction Transistor, abbreviated as BJT. It is an NPN transistor. It has three terminals named as: Emitter. Collector.

Is BC547 a PNP?

BC547 PNP Transistor, SMD.

How do I enable BC547?

Useful Steps
  1. Place Transistor on a breadboard.
  2. Connect Emitter to the ground of the battery.
  3. Add LED & 330 Ohm Resistor to Collector of BC547.
  4. Connect 1k Resistor and Switch to Base of transistor.
  5. Power up the circuit with 9V Battery.
Apr 30, 2019

Can I use BC547 instead of 2N2222?

Product Datasheet. Can we use BC547 instead of 2N2222? Yes, you can use, for switching just look for Ic(collector current) and Vceo(collector-emitter voltage) in the datasheet.