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What is the sensitivity of a voltmeter using 0-5mA meter movement?
S = 1/ Ifsd = 1/5mA = 200 Ohm / V
What is a meter stop?
A meter stop is a small metal or plastic peg placed just beyond the limits of normal meter movement on an analog meter movement to prevent the needle from moving too far off scale. Overloading a meter so that it hits the meter stop hard is often called "pegging" the meter and can damage it by bending the needle.
Why are moving iron test instruments not used with DC although they can work in DC?
For moving-iron instrument magnetic field is caused when the current (voltage) passes the fixed circle. When the current (voltage) passes the fixed circle，the two iron plates are magnetized ,rotational torque is resulted, the deflection angle indicate measured current. Because the magnetized polarity is same for AC or DC, moving-iron instrument can be used in AC and DC circuit. For permanent-magnet moving-coil instrument magnetic field is caused by the permanent-magnet, When the DC current passes the moving coil, rotational torque is resulted,so the deflection angle indicate measured DC current. As AC current passes the moving coil ,because inertia of moving parts of meter the deflection angle indicate rotational torque average, but rotational torque average is zero in cycle, moving parts of meter is´t deflec,so permanent-magnet moving-coil instrument only is used in DC circuit.
How does the meter have to connect to the battery in order to provide an indication?
The meter ( as refered to a conventional moving coil analog pointer type ) basically operates on a Direct Current ( DC ) passing in its coils. Hence the meter inherently has a polarity of operation i.e the positive & negative inputs of the meter must be connected appropriately with the corresponding positive & negative potentials in the circuit being measured , so that the meter deflection is in the correct direction of the measuring scale ( typically clockwise movement ) Bsis Voltage & current measurement scales are linear , while resistance ohmic measurement scales are generally non linear. Incorrect polarity of connection will result in the meter deflecting in the opposite direction & usually will not damage the meter unless an inappropriate measuring range was selected. Whenever the magnitude of measured voltage or current is not known approximately beforehand, the best precaution is to use the highest range on the meter & stepping down the range if the deflection is too low for a good reading.This will prevent damage to the meter due to overload deflection which generally will damgage the delicate moving parts of the meter, which results in a total writeoff. For measuring voltages , the meter configuration as a voltmeter is used, where a series voltage dropping high value resistor appropriate to the range of voltage being measured is incorporated into the meter itself. The voltmeter is always connected across the points where the measurement is required. Hence no alteration of circuit is required for this measurement. For measuirng current, a low value resistor across the coils of the meter is incorporated appropriate to the range value of currents being measured, as a shunt to divert currents larger than what the basic meter can handle. It is necessary to break the circuit at a convinient point where the measurement is required and the meter inserted into the circuit. Hence an alteration of circuit is required for this measurement. When a meter is configured to measure resistance , a low voltage battery source with appropriate circuitry is incorporated into the meter itself to read the resistance value directly in ohms. Modern digital meters generally have bipolar measurement capabilities, in which the polarity of measurement is indicated. Here only the moving coil meter is replaced by a analog to digital convertor chip which directly displays the value on the digital readout. Otherwise the same measurement principles apply.
Deca newton-meter of torque?
The deca Newton meter of torque is 0.1 to one Newton meter. In relation to the kilo meter of torque, it is .001. Many converters are available online for torque measurements.
What are the factors affecting folk dances?
There are quite a few factors that affect folk dancing. These factors include rhythm, meter, and associated steps for dancing.
What are the Limitation of meter bridge?
Some limitations of a meter bridge include: Limited accuracy due to human error in taking measurements. Restricted use in measuring resistance values that are too high or too low. Sensitivity to external factors like temperature and vibrations, which can affect the readings. Inherent resistance in the connecting wires can introduce errors in the measurements.
What are the affecting folk dance?
There are quite a few factors that affect Folk Dancing. These factors include rhythm, meter, and associated steps for dancing.
Define sensitivity of meter?
sensitivity of a multimeter is defind as the smallest value that can be measured by the meter . some time it may also be given the recprocal of full scale defflection and resistance . volt/ohm.
What is the deflection sensitivity of a cathode ray oscilloscope?
It is the deflection on the screen (meter) per volt of deflection
How does a moving iron meter works?
TAE
How does a moving iron frequency meter works?
TAE
What is the cost associated with moving a gas meter to a new location?
The cost of moving a gas meter to a new location can vary depending on factors such as the distance of the move, the complexity of the installation, and any additional work required. Typically, the cost can range from a few hundred to a few thousand dollars. It is recommended to contact your gas provider for an accurate estimate.
What is the sensitivity of a meter stick?
That's a weird way to talk about a meter stick, but I'll take it seriously, play dumb, and discuss the meter stick just like any other piece of test equipment: When you select the device you need for the measurement you're about to perform, you have to consider its sensitivity ... the size of the smallest measurement it can detect and indicate for you with reasonable accuracy. A meter stick usually has all 100 centimeters marked on it, and millimeters marked for the first one or two centimeters. So I would say that by handling, moving, and flipping the stick appropriately and cleverly, you could perform reasonably accurate measurements in the range of 1/2 millimeter to 1 meter ... 2,000 to 1 with a wooden stick, which is not too shabby !
Scale used in moving coil meter is?
Linear Scale
What are the types of electrodynamometer?
The two main types of electrodynamometer are attracted disc type and moving coil type. In the attracted disc type, two stationary coils create a magnetic field that attracts a disc attached to the moving coil. In the moving coil type, the coil is suspended between stationary magnets and experiences a force when current flows through it.
What is the sensitivity of a voltmeter using 0-5mA meter movement?
S = 1/ Ifsd = 1/5mA = 200 Ohm / V
