RRB JE GK Questions 2026

The slide master holds the formatting that every slide built on it inherits — title font, body font, bullet style, background, colour scheme and the position of a logo — so one edit there updates the whole deck.

Shift + F5 is the "play from here" key, and it saves a presenter from running through a long deck while checking one slide.

Animations act on the objects of a slide — text, shapes, pictures, charts, SmartArt — and fall into four groups: Entrance, Emphasis, Exit and Motion Paths.

A transition is the visual effect between two slides — Fade, Push, Wipe, Split or Morph — and its gallery, duration, sound and advance timing all sit on the Transitions tab.

It adds a fresh slide below the selected slide, using the layout of the current one.

It lays every slide of the deck side by side as a thumbnail, so a slide can be dragged to a new position, copied, hidden or deleted, and the flow of the whole presentation can be judged at a glance.

From PowerPoint 2007 onwards the default save format is the XML-based Open Office format, whose extension is.pptx, and PowerPoint 2016 follows it.

Statement (i) is wrong because Ctrl + N opens a brand new, empty presentation; the key that inserts a new slide into the open presentation is Ctrl + M. Statement (ii) is true: PowerPoint 2016 can save or export a presentation as a PDF through Save As or Export, a…

Pressing F5 anywhere in a presentation closes the editing window and runs the slide show from slide one, whichever slide you were working on.

The resistance of a wire equals the resistivity of the material multiplied by the length and divided by the area of cross section.

It is the energy consumed by an appliance of one kilowatt working for one hour, and it equals three point six million joules.

The tangent drawn to a magnetic field line at any point gives the direction of the field at that point.

The fuse is a short piece of wire of low melting point placed in series in the live line, so that an excessive current melts it and breaks the circuit.

In 1831 Faraday showed that when the magnetic flux linked with a closed coil changes, whether by moving a magnet, moving the coil or changing the current in a nearby coil, a current is induced in it.

In Fleming's left hand rule the forefinger, the middle finger and the thumb of the left hand are held at right angles to one another: the forefinger points along the magnetic field, the middle finger along the current, and the thumb then gives the direction of the force.

Hold the conductor in your right hand with the thumb stretched along the direction of the conventional current; the way your fingers curl round the wire is the direction of the concentric magnetic field lines.

Tungsten has the highest melting point of all metals, well above three thousand degrees Celsius, so a thin tungsten wire can be heated until it glows white without melting.

By Ohm's law the resistance equals the potential difference divided by the current. Here the current must first be converted into the base unit: two milliampere is 0.002 ampere.

A microwave oven does not cook by passing a current through a resistance. It generates microwaves in a magnetron, and these waves make the water molecules in the food rotate rapidly, so the food heats from within by dielectric heating.

The potential difference between two points in a circuit is defined as the work done in moving a unit positive charge from one point to the other.