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What terms is used to describe a wire which offers obstruction to the path of electric current?
A wire that offers obstruction to the path of electric current is typically called a resistor. Resistors are designed to limit the flow of electricity and are used in electronic circuits to manage current and voltage levels.
What other names is Nikola Tesla called by?
He was the only person who I have read about, that no one came with a nickname for him.
What are three methods to measuere volume?
Use a graduated cylinder and read the volume at the meniscus. Use a measuring beaker or flask and read the volume at the calibrated markings. Calculate the volume of regular-shaped objects using mathematical formulas such as length x width x height or πr^2h for cylinders.
How do you read Weighing scale?
To read a weighing scale, simply step on it and wait for the display to stabilize. The number shown on the display is your current weight.
What will an ammeter show if the circuit is broken?
Zero. No current is flowing in an open circuit. The ammeter will display an amount of 0 amps because there is no longer any current once the circuit has been broken. An ammeter measures current.
Where does the current come from that moves the needle on an analog clamp on meter?
A: Directly from whatever you are measuring as a Small current to move the coil to indicate current flow. That current can be calibrated to read voltage or current on the meter itself
How do you convert galvanometer to an ohmmeter?
"An ohmmeter is an electrical instrument that measures electrical resistance, the opposition to an electric current."The unit of measurement for resistance is ohms (Ω).It is useful device for rapid measurement of resistance. It is consist of galvanometer and adjustable resistance Rs of known value and a cell connected in series. The resistance R to be measured is connected between the terminals.The series resistance Rs is so adjusted that when the terminals are short circuited i.e., when R = 0, the galvanometer gives full scale deflection. So the extreme graduation of the usual scale the galvanometer is marked 0 for resistance measurement. When terminals are not joined no current passes through the galvanometer and its deflection will be zero . Thus zero of the scale marked as infinity. . When R is not infinite , the galvanometer deflects to some intermediate point depending on the value of R scale can be calibrated to read the resistance directly.
What value of resistance is used to convert galvanometer into voltmeter?
It depends on the resistance of the galvanometer and its full scale current. A 100 ohm meter reading 1 milliampere would require 0.1 volts to reach full scale, so it would require about 0.1 ohms in parallel to become a 1 ampere ammeter.
For thermometers to read temperature correctly they must be?
Calibrated
What would a helium analyzer read if calibrated with air?
It should read zero. There is essentially no helium in room air.
Why do you connect galvanometer in series?
You connect a galvanometer in series with the circuit being measured, because the galvanometer is a form of ammeter, although an extremely sensitive one, and ammeters measure the current in a series circuit.
How do you install a odometer in a vehicle to read a kilometre?
Odometer is an instrument that can measure miles or kilometer depending on how it is calibrated
Why Ohmmeter can't read the resistance value when current flow through resistor?
An ohmmeter is a calibrated circuit that puts current through the resistor to measure its value. If something else is also putting current through the resistor that the meter doesn't know about, the meter calibration is disturbed and a false reading results. It may even damage the meter.
How do you properly read a pipette?
To properly read a pipette, first ensure it is clean and calibrated. Hold it vertically, draw up the liquid to the desired volume, and then read the meniscus at eye level. Make sure to account for any calibration markings on the pipette.
How to read 1 gram on a scale accurately?
To read 1 gram on a scale accurately, place the object on the scale and wait for the reading to stabilize. Ensure the scale is calibrated and zeroed before use. Read the measurement displayed on the scale, which should show 1 gram.
A sealed glass float with a calibrated paper scale in its stem With a slight spinning motion it is placed into a cylinder containing a urine sample and the value is read at the meniscus of the urine?
culture and senstivity
How should the food handler test the temperature of food?
Food temperature is generally checked by inserting the probe into the thickest part of the food, using a sanitized, calibrated, instant-read thermometer.
