Q1141
Open questionWhich sources produce alternating current (AC)?
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Q1142
Open questionAlternating current is converted into direct current by a
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Q1143
Open questionSpeed regulation of synchronous motor is
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Q1144
Open questionA parallel-plate capacitor,with air in between the plates, has capacitance C. Now the space between the two plates of the capacitor is filled with a dielectric of dielectric constant 7. Then the value of the capacitance will become
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Q1145
Open questionA parallel-plate capacitor of capacitance C1 is made using two gold plates. Another parallel-plate capacitor of capacitance C2 is made using two aluminium plates with same plate separation, and all the four plates are of same area. If rg and ra are respectively the electrical resistivities of gold and aluminium, then which one of the following relations is correct?
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Q1146
Open questionWhich compressor is usually used in AC?
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Q1147
Open questionThe best material for the core of a transformer is
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Q1148
Open questionA transformer works on the principle of
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Q1149
Open questionTransformer is a device to convert
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Q1150
Open questionAtomic hydrogen has a life period of
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Q1151
Open questionAccording to Rutherford's atomic model, the electrons inside an atom are
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Q1152
Open questionElectrons carry a
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Q1153
Open questionAn atom with more neutrons than protons is called
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Q1154
Open questionWhat part of the atom has a positive charge?
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Q1155
Open questionWho was the first scientist to discover Electrons?
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Q1156
Open questionThe wave like properties of electrons are useful in
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Q1157
Open questionWho indirectly determined the mass of the electron by measuring the charge of the electron?
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Q1158
Open questionWhen an atom loses an electron it becomes
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Q1159
Open questionWhat is the size of Electron as comapared to Proton and Neutron?
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Q1160
Open questionThe force that binds the neutrons and protons in a nucleus is called as:
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