1 pointWhich of the following is a property of a Relay. a. Mechanical switch b. Electrochemical switch c. None of these d. All of these

1 pointWhich of the following is a property of a Relay. a. Mechanical switch b. Electrochemical switch c. None of these d. All of these

The LED is usually made of………………………… a. C and Si b. GeSi c. GaAs d. None os these

When iron filings are mixed with sand, which physical property of the iron filings stays the same? A. magnetism B. state of matter C. shape D. all of these

Which of these is an isoelectronic series?A) Na+, K+, Rb+, Cs+B) K+, Ca2+, Ar, S2–C) Na+, Mg2+, S2–, Cl–D) Li, Be, B, CE) none of these (A-D)

Property lines are monumented on the ground at a. none of the above b. control points c. property corners d. the front of the property