by Sunday | Oct 6 | NABTEB QUESTIONS
A capacitor is a device for storing electric charges or for storing electricity The three types of capacitors are: (1) Variable air capacitor (2) paper capacitor (3) Electrolytic capacitor Appliances that use capacitor are: 1. Radio tune circuit 2. Car ignition system...
by Sunday | Oct 6 | NABTEB QUESTIONS
Electric conductors are materials that will allow easy movement of electrons through them. While insulators are materials which do not allow easy movement of electrons through them. A good conductor of electricity is a good conductor of heat. Examples of conductors...
by Sunday | Oct 6 | NABTEB QUESTIONS
1. it requires a long exposure time to develop the image on the film, allowing sufficient light to enter the boxes. 2. it can only take photographs of still objects. 3. it produces an inverted image
by Sunday | Oct 6 | NABTEB QUESTIONS
Cubic expansivity of a gas at constant pressure is defined as the increase in volume of a gas per unit volume of the gas at 0°C per degree Celsius increase in temperature when the pressure is constant.
by Sunday | Oct 6 | NABTEB QUESTIONS
Work done = ½ FX = ½ KX² K = stiffness constant = 100Nm-1 X = Extension of spring = 100mm = 0.1m Work done = ½ x 1000 x (.1)² Joules = ½ x 1000 .01J W = 5.0J
by Sunday | Oct 6 | NABTEB QUESTIONS
Hooke’s law states that provided the elastic limit of an elastic material is not exceeded, the extension of the materials is directly proportional to the load or force applied. (F = K X). F = KX (Provided the elastic limit is not exceeded) Where F = Applied...
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