What happens if base-emitter junction is reverse biased?

What happens if base-emitter junction is reverse biased? If you reverse bias the diode, the diode cuts off. Now, the base-emitter junction in a transistor is going to essentially turn the transistor on or off. Now, the base-collector junction will not have that same power, but the base-emitter junction will determine whether the transistor is […]

Is sand a good thermal insulator?

Is sand a good thermal insulator? Saturated sand has a thermal conductivity in the range of 2-4 W/m-K which causes the sand layer thickness to go astronomical. Thus it can be shown that sand is a good replacement for fiberglass pipe insulation in underground, direct buried applications. It’s easier to install and costs less. Does […]

Why do plasma balls make you smell?

Why do plasma balls make you smell? If a hand is placed close to the globe it produces a faint smell of ozone, as the gas is produced by high voltage interaction with atmospheric oxygen. Some globes have a control knob that varies the amount of power going to the center electrode. What happens if […]

What should I expect at a developmental assessment?

What should I expect at a developmental assessment? Your assessment will be tailored to your child’s age and suspected problem or delay. In general, you can expect that you’ll spend time answering a host of detailed questions about your child’s growth, physical movements, behavior, play, and interactions with family members and the rest of the […]

Does benzene absorb UV light?

Does benzene absorb UV light? Note that both benzene and naphthacene absorb light in the near ultraviolet but that the latter does so much more intensely. A solution of naphthacene will absorb almost 100 times as much light at 250 nm. as a solution of benzene of the same molar concentration. Can light break bonds? […]

Why H2O is polar and CO2 is nonpolar?

Why H2O is polar and CO2 is nonpolar? Both CO2 and H2O have two polar bonds. However the dipoles in the linear CO2 molecule cancel each other out, meaning that the CO2 molecule is non-polar. The polar bonds in the bent H2O molecule result in a net dipole moment, so H2O is polar. Which is […]

What does Div F mean?

What does Div F mean? We also have a physical interpretation of the divergence. If we again think of →F as the velocity field of a flowing fluid then div→F div F → represents the net rate of change of the mass of the fluid flowing from the point (x,y,z) ( x , y , […]

What are the basic stages of emotional development?

What are the basic stages of emotional development? Erikson’s Eight Stages of Development Learning Basic Trust Versus Basic Mistrust (Hope) Learning Autonomy Versus Shame (Will) Learning Initiative Versus Guilt (Purpose) Industry Versus Inferiority (Competence) Learning Identity Versus Identity Diffusion (Fidelity) Learning Intimacy Versus Isolation (Love) What are the emotional benefits of play? Emotional benefits of […]

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