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What elements resistance to the flow of electricity is greatly affected by the amount of light shining on it?
A photoresistor (or light-dependent resistor) is an element whose resistance changes with the amount of light shining on it. When exposed to light, the resistance of a photoresistor decreases, and when in darkness, the resistance increases. This property makes photoresistors useful in light-sensing applications.
What is the diameter of a 1.04 m length of tungsten wire whose resistance is 0.19?
The resistance of a wire is not sufficient information to determine its diameter. The diameter of a wire is typically needed to calculate its resistance using the formula R = ρ*L/A, where ρ is the resistivity, L is the length, and A is the cross-sectional area. You would need to know the resistivity and material of the wire to calculate its diameter.
What is a pure capacitor?
A pure capacitor is an idealized version of a capacitor that has only capacitive reactance and no resistance or inductance. It stores and releases electrical energy in the form of an electric field. Pure capacitors are often used in electronic circuits for filtering, smoothing, timing, and energy storage purposes.
A screw has a pitch of 0.0200 cm. An effort force of 29.0 N is used to turn a screwdriver whose handle diameter is 36.0 mm. What is the maximum resistance force?
To calculate the maximum resistance force, we first need to find the mechanical advantage of the screwdriver. The mechanical advantage is calculated as the handle diameter divided by the pitch of the screw, which gives us 36.0 mm / 0.200 cm = 180. Next, we use the formula for mechanical advantage: MA = Resistance force / Effort force. Plugging in the values, we get 180 = Resistance force / 29.0 N. Solving for the resistance force gives us 180 * 29.0 N = 5220 N as the maximum resistance force.
What are the materials measuring heat?
Materials used to measure heat include thermocouples, resistance temperature detectors (RTDs), and thermistors. These devices work by measuring changes in temperature and converting them into electrical signals that can be interpreted as heat levels. Thermocouples are made of two different metals that generate a voltage proportional to the temperature difference between the two junctions. RTDs consist of a coil of wire whose resistance changes with temperature. Thermistors are temperature-sensitive resistors that change resistance depending on temperature.
Which one is equivalent equals?
The one whose likeness is the same.
How many times a day does a digital clock display digits whose sum total equals the number of led's used to display them?
A 24 hour clock displays digits whose sum total equals the number of led's used to display them 94 times a day. A 12 hour clock displays them 108 times a day.
What are two numbers whose sum equals -16 and whose product equals -12?
-4
Why a pure inductor do not consume power?
whose resistance is zero.but it is practically not possible. there is something resistance present in the wire
How many times more acidic is a solution whose pH equals 1 compared to a solution whose pH equals 5?
100,000 times more acidic
What is a circuit with several current paths whose total current equals the sum of the currents in its branches?
This is a parallel circuit, each of the parallel current paths draws a certain current, and the input current equals the output current, so the sum of all current through each path has to equal the total current.
How the resistance of conducting material vary with temperature?
Well, there's typically two types of materials-Those with positive temperature coefficient and those with negative temperature coefficient. Positive temperature coefficient are those whose resistance increases as temperature increases. Negative temperature cofficient are those whose resistance decrease when the temperature increase. There are however some alloys such as Manganin& Constantan whose resistance is not affected by temperature
What is the sphericity for a cylinder whose length equals to diameter?
1
Which fraction is equivalent to the whole?
-- Any fraction whose denominator is a factor of its numerator is equivalent to a whole number. -- Any fraction whose numerator and denominator are the same number is equivalent to ' 1 '.
What is a circuit with several current paths whose total current equals the sum of the currents in its branches called?
This is a parallel circuit, each of the parallel current paths draws a certain current, and the input current equals the output current, so the sum of all current through each path has to equal the total current.
What are the two numbers whose product is 200 and whose sum is 33?
The two numbers you are looking for are 8 and 25. When multiplied, 8 × 25 equals 200, and when added, 8 + 25 equals 33.
What is only prime number whose value equals to 2?
2
