Who in 1786 invented the gold leaf electro scope?

Who in 1786 invented the gold leaf electro scope?
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1 Answer

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Answer: Abraham Bennet.
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Description : The element having highest reactivity or electro-negativity?

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Description : The elements which have least electro negativity?

Last Answer : Francium; Caesium

The element which has most electro neg- ativity?

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Last Answer : Electro polishing is an electrochemical process that removes material from a metallic article. It is the reverse of electroplating.

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Last Answer : Nitrogen will be more electro negative as it decreases down the group.

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Last Answer : Electro positivity decreases along a period and increases down the group. Electro negativity increases a period and decreases down the group. Electro positivity

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Last Answer : Atoms which accept electrons easily are called electro negative. Ex; Chlorine.

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Last Answer : Atoms which give up electrons easily are called electro-positive. Ex: Sodium atom.

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Last Answer : Normally, studs and the like are of silver or gold which are excellent electrical conductors.

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Last Answer : : Electro-optical instruments are the instruments which are produced by the electrical system and the instruments are used to measure and diagnose the faults . Such as- autoclimate , micro comparator etc.

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Which of the following is not electro-mechanical computer? A) Mark I B) ABC C) Zuse D) UNIVAC

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When a vehicle passes, TV reception gets distorted. This is because – (1) metal reflects radiowaves (2) spark plug creates electromagnetic disturbances (3) vehicle pollution affects the performance of the TV components (4) modern vehicles use electro ignition system

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In electro-refining, the pure metal is deposited on – (1) vessel (2) electrolyte (3) cathode (4) anode

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The high reactivity of fluorine is due to (1) small size of fluorine atom (2) its high electro negativity (3) availability of d-orbitals (4) strong F - F bond

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When a vehicle passes, TV reception gets distorted. This is because – (1) metal reflects radiowaves (2) spark plug creates electromagnetic disturbances (3) vehicle pollution affects the performance of the TV components (4) modern vehicles use electro ignition system

Description : When a vehicle passes, TV reception gets distorted. This is because – (1) metal reflects radiowaves (2) spark plug creates electromagnetic disturbances (3) vehicle pollution affects the performance of the TV components (4) modern vehicles use electro ignition system

Last Answer : (2) spark plug creates electromagnetic disturbances Explanation: This is caused due to the interference caused by the electromagnetic waves generated by a passing vehicle. These waves were within the same ... in which two waves superimpose to form a resultant wave of greater or lower amplitude.

Electro-static precipitator is used to control – (1) Chemical Pollutants (2) Radio-active Pollutants (3) Water Pollutants (4) Air Pollutants

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A current carrying conductor is associated with – (1) a magnetic field (2) an electric field (3) an electro-magnetic field (4) an electrostatic field

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Last Answer : (3) an electro-magnetic field Explanation: A current carrying conductor, such as a metal wire, will produce a magnetic field around it because of the motion of charge within the wire itself. This motion produces or sets up a magnetic field around the wire in the form of concentric circles.

Which among the following is not a characteristic of transition metals? (1) Tendency to gain electrons (2) Low electro negativity (3) Low ionization energy (4) Malleability

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Last Answer : (1) Tendency to gain electrons Explanation: The transition metals have a tendency to lose electrons. Since the electrons in the highest energy level are actually on a lower principal energy number than the ... makes it relatively easy to lose some or all of their electrons to land in stable state.

__________ is a handheld electro-optical pointing device. It is also called mouse pen. A. Joy Stick B. Light Pen C. Trackball D. Touch Screen

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Last Answer : B. Light Pen

What are different types of principles of operation of electro-mechanical relays?

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During electro refining, Pure Metal is collected at

Description : During electro refining, Pure Metal is collected at

Last Answer : Cathode

What is meant by electro negativity of SF6 gas?

Description : What is meant by electro negativity of SF6 gas?

Last Answer : SF6 has high affinity for electrons. When a free electron comes and collides with a neutral gas molecule, the electron is absorbed by the neutral gas molecule and negative ion is formed. This is called as electro negativity of SF6 gas.