Electronics Engineering

Start by using Ohm's law. 10 volts and 200 microamps requires 50,000 ohms. From that, subtract the impedance of the meter. Place the final resistor in series with the meter.

Add a resistor in series of such a size that when there is 10v it will allow 200 u amps to flow.

When people are stupid, they use things that are easy to use (apple) despite the fact that they have less features

...90 volts...

speed will increase

Yes, when it was first invented at Bell Labs in 1947 the technology needed to actually build it did not yet exist. Even when the technology became available to build it in the late 1960s, several serious issues remained including: size of phone, weight of phone, battery life, weight of battery, etc.

red 2, black 0, red 102, red 2%. 20 x 102 with 2% tol.

Amperes

Hertz

Watts

The current will flow in one direction only. That direction is indicated by, usually, a ring around one end of the diode. The current will flow from the unmarked end to the marked end.

• RFID are expensive comparied to Barcodes
• RFID readers struggle picking up information when passing through metal or liquid.
• Reader collision can occur where two signals from different readers overlap and the tag is unable to respond to both.
• Tag collision can occur when numerous tags in the same area respond at the same time.
• RFID still has two separate chips (read only and readable/writable), which cannot be read by the same machine.

Radar receivers have to be tuned to the precise frequency of the transmitter, in order to get the best detection and thus the best picture.

The transmitter generates microwaves from a device called a magnetron. The exact frequency can vary with age and temperature.

To pick up the echo generated from the pulsed microwave, the receiver is able to be tuned, to allow for differences in transmitter frequency.

The control on the radar receiver display, called 'tuning', actually alters the receiver frequency, not the transmitter frequency.

Series circuit: one path. Parallel circuit: One path for each branch (two or more).

It is a current that can induced in a semiconductor materail by colling them in a magnetic field below a transition temperature and then switched off the field...thank u N.S

Induction is the principle operating mechanism of transformers, so any voltage and current output of a transformer - a volt or less to hundreds of thousands of volts (I think the top AC voltage in the world right now is near 1,000kV), and milliamps to thousands of amps.

This is incorrect. DRAM is a digital device, and so is SRAM.

DRAM and SRAM serve the same functions- temporary storage space (or random access memory, hence 'RAM') in different ways.

DRAM data is typically refreshed every so often, uses more power than SRAM and is much slower, but also much cheaper and easier to manufacture in huge sizes.

SRAM, such as the cache on CPUs, is much smaller and faster, and stores data until it is cleared or the computer is turned off (and in some cases, even without power) but is extremely expensive.

when the pole flux is zero there is no induced emf in the armature conductor of dc machine as a result of this there is no back emf for controlling action so speed become dangerously high or we can say it will be infinite.

The Diode Check setting on a DVOM is a special ohms setting that presents enough voltage to the tested device to conduct, if it were a diode. Old style VOM's did not have this problem, because they usually used a battery greater than 0.7 volts to run the ohm's scale. Modern DVOM's, however, can use very small voltages to measure ohms, and that would not cause a diode to conduct. The Diode Check setting fixes this limitation.

Look on thew nameplate of the motor to see if it is thermally protected. This means that there is overload protection on the inside of the motor next to the windings. If the temperature rises in these windings the motor will trip off line and stop. Once the motor cools down the thermal overload device will reset and the motor will start again the next time you try it. As the answer states below reduce the load.

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How about over heating. To much load caused by bad bearings. Simply to much load.

Which type of resistor is commonly used in automotive circuits?

If RT is the total resistance, then:

1/RT = (1/R1) + (1/R2)

A diode only allows current flow in one direction, so if installed backwards it will not work as intended.

A: Depends on the meter it measure ohms, voltage, current. some may test for transistor beta health of battery and then some

The capacitor is called a bypass capacitor , it provides a low impedence path for AC emitter current to groun.

J.J. Thomson used the cathode ray. Thomson's cathode ray experiment was when he shot a narrow beam of electrons through a cylindrical tube and deflected the electrons off of electric and magnetic fields, thus measuring the effects that those fields had on the direction of the beam.