Non-inverting Operational Amplifier | Applications

A non-inverting amplifier is a operational amplifier circuit which produces amplified output signal which is in phase with the input signal. Figure 1 shows the basic non-inverting operational amplifier. The input signal Vin is applied directly to the non-inverting terminal while one side of resistor R1 is connected to the inverting terminal and the other side is … Read moreNon-inverting Operational Amplifier | Applications

Vernier Callipers | Least Count

Vernier calliper is a precision instrument used to measure internal and external distances accurately upto (1/10)th of a millimetre. The vernier calliper is as shown in the figure 1. Vernier Constant (VC): It is the difference between values of one main scale division and one vernier scale division of vernier callipers. Let n vernier scale … Read moreVernier Callipers | Least Count

Significant Figures Rules

The number of digits in the measured value which include certain digits plus one uncertain (doubtful) digit are known as significant figures. In this article we will learn Significant Figures Rules and their examples. Rules for Counting the Significant Figures Rule 1: All non-zero digits are significant. Rule 2: All zeros occurring between the non-zero digits … Read moreSignificant Figures Rules

Bohr Atomic Model | Postulates

Neil Bohr, a danish physicist, proposed the Bohr atomic model in 1913. Bohr modified the problems and limitations associated with Rutherford’s model of an atom. Neil Bohr made postulates using Planck’s quantum theory. Postulates of the Bohr Atomic Model 1. The atom has a massively positively charged nucleus. 2. Electrons revolve around the nucleus in a fixed circular path called … Read moreBohr Atomic Model | Postulates

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